किस विधि में समीकरण को पहले ((x+p)2 =q) जैसे रूप में बदला जाता है?
In which method is the equation first changed into a form like ((x+p)2 =q)?
#quadratic
#completing-square
#method
A पूर्ण वर्ग विधि / Completing square method
B गुणनखंड विधि / Factorisation method
C वर्गों के अंतर की विधि / Difference of squares method
D शून्य गुणनफल नियम / Zero product rule
Explanation opens after your attempt
Correct Answer
A. पूर्ण वर्ग विधि / Completing square method
Step 1
Concept
In completing square method, the quadratic part is made into the form ((x+p)2 ). In exams, this method is useful when simple factors are not found quickly.
Step 2
Why this answer is correct
The correct answer is A. पूर्ण वर्ग विधि / Completing square method. In completing square method, the quadratic part is made into the form ((x+p)2 ). In exams, this method is useful when simple factors are not found quickly.
Step 3
Exam Tip
पूर्ण वर्ग विधि में द्विघात भाग को ((x+p)2 ) के रूप में बनाया जाता है। परीक्षा में यह विधि तब उपयोगी है जब सामान्य गुणनखंड जल्दी न मिलें।
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\(x^2+24x+144\) किसके बराबर है?
What is \(x^2+24x+144\) equal to?
#quadratic
#perfect-square
#completing-square
A ((x+12)2 )
B ((x-12)2 )
C ((x+24)2 )
D ((x-24)2 )
Explanation opens after your attempt
Correct Answer
A. ((x+12)2 )
Step 1
Concept
(x-2 +24x+144=(x+12)2 ). In exams, identify it using \(2\cdot12x=24x\).
Step 2
Why this answer is correct
The correct answer is A. ((x+12)2 ). (x-2 +24x+144=(x+12)2 ). In exams, identify it using \(2\cdot12x=24x\).
Step 3
Exam Tip
(x-2 +24x+144=(x+12)2 ) है। परीक्षा में \(2\cdot12x=24x\) से पहचान करें।
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पूर्ण वर्ग विधि में \(x^2+24x+17=0\) के लिए किस संख्या का प्रयोग होगा?
In completing square method for \(x^2+24x+17=0\), which number will be used?
#quadratic
#completing-square
#number-choice
A (144)
B (24)
C (12)
D (17)
Explanation opens after your attempt
Step 1
Concept
Half of (24) is (12), and \(12^2=144\). In exams, add the square of half the coefficient.
Step 2
Why this answer is correct
The correct answer is A. (144). Half of (24) is (12), and \(12^2=144\). In exams, add the square of half the coefficient.
Step 3
Exam Tip
(24) का आधा (12) है और \(12^2=144\) होता है। परीक्षा में आधे गुणांक का वर्ग जोड़ना होता है।
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पूर्ण वर्ग बनाते समय \(x^2-22x\) में कौनसा पद जोड़ना होगा?
While completing the square, which term must be added to \(x^2-22x\)?
#quadratic
#completing-square
#term
A (121)
B (22)
C (11)
D (44)
Explanation opens after your attempt
Step 1
Concept
Half of (-22) is (-11), and ((-11)2 =121). In exams, the square of half the coefficient is always positive.
Step 2
Why this answer is correct
The correct answer is A. (121). Half of (-22) is (-11), and ((-11)2 =121). In exams, the square of half the coefficient is always positive.
Step 3
Exam Tip
(-22) का आधा (-11) है और ((-11)2 =121) होता है। परीक्षा में आधे गुणांक का वर्ग हमेशा धनात्मक होता है।
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पूर्ण वर्ग विधि में \(x^2+20x+13=0\) के लिए कौनसी संख्या जोड़ी और घटाई जाएगी?
In completing square method for \(x^2+20x+13=0\), which number will be added and subtracted?
#quadratic
#completing-square
#number-choice
A (100)
B (20)
C (10)
D (13)
Explanation opens after your attempt
Step 1
Concept
Half of (20) is (10), and \(10^2=100\). In exams, use (\left\(\frac{b}{2}\right\)2 ).
Step 2
Why this answer is correct
The correct answer is A. (100). Half of (20) is (10), and \(10^2=100\). In exams, use (\left\(\frac{b}{2}\right\)2 ).
Step 3
Exam Tip
(20) का आधा (10) है और \(10^2=100\) होता है। परीक्षा में (\left\(\frac{b}{2}\right\)2 ) का प्रयोग करें।
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\(x^2+16x+64\) किसके बराबर है?
What is \(x^2+16x+64\) equal to?
#quadratic
#perfect-square
#completing-square
A ((x+8)2 )
B ((x-8)2 )
C ((x+16)2 )
D ((x-16)2 )
Explanation opens after your attempt
Correct Answer
A. ((x+8)2 )
Step 1
Concept
(x-2 +16x+64=(x+8)2 ). In exams, identify it using \(2\cdot8x=16x\).
Step 2
Why this answer is correct
The correct answer is A. ((x+8)2 ). (x-2 +16x+64=(x+8)2 ). In exams, identify it using \(2\cdot8x=16x\).
Step 3
Exam Tip
(x-2 +16x+64=(x+8)2 ) है। परीक्षा में \(2\cdot8x=16x\) से पहचान करें।
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पूर्ण वर्ग विधि में \(x^2+16x+11=0\) के लिए किस संख्या का प्रयोग होगा?
In completing square method for \(x^2+16x+11=0\), which number will be used?
#quadratic
#completing-square
#number-choice
A (64)
B (16)
C (8)
D (11)
Explanation opens after your attempt
Step 1
Concept
Half of (16) is (8), and \(8^2=64\). In exams, add the square of half the coefficient.
Step 2
Why this answer is correct
The correct answer is A. (64). Half of (16) is (8), and \(8^2=64\). In exams, add the square of half the coefficient.
Step 3
Exam Tip
(16) का आधा (8) है और \(8^2=64\) होता है। परीक्षा में आधे गुणांक का वर्ग जोड़ना होता है।
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पूर्ण वर्ग बनाते समय \(x^2-18x\) में कौनसा पद जोड़ना होगा?
While completing the square, which term must be added to \(x^2-18x\)?
#quadratic
#completing-square
#term
A (81)
B (18)
C (9)
D (36)
Explanation opens after your attempt
Step 1
Concept
Half of (-18) is (-9), and ((-9)2 =81). In exams, the square of half the coefficient is always positive.
Step 2
Why this answer is correct
The correct answer is A. (81). Half of (-18) is (-9), and ((-9)2 =81). In exams, the square of half the coefficient is always positive.
Step 3
Exam Tip
(-18) का आधा (-9) है और ((-9)2 =81) होता है। परीक्षा में आधे गुणांक का वर्ग हमेशा धनात्मक होता है।
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पूर्ण वर्ग विधि में \(x^2+12x+7=0\) के लिए कौनसी संख्या जोड़ी और घटाई जाएगी?
In completing square method for \(x^2+12x+7=0\), which number will be added and subtracted?
#quadratic
#completing-square
#number-choice
A (36)
B (12)
C (6)
D (7)
Explanation opens after your attempt
Step 1
Concept
Half of (12) is (6), and \(6^2=36\). In exams, use (\left\(\frac{b}{2}\right\)2 ).
Step 2
Why this answer is correct
The correct answer is A. (36). Half of (12) is (6), and \(6^2=36\). In exams, use (\left\(\frac{b}{2}\right\)2 ).
Step 3
Exam Tip
(12) का आधा (6) है और \(6^2=36\) होता है। परीक्षा में (\left\(\frac{b}{2}\right\)2 ) का प्रयोग करें।
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\(x^2-10x+25\) किसके बराबर है?
What is \(x^2-10x+25\) equal to?
#quadratic
#perfect-square
#completing-square
A ((x-5)2 )
B ((x+5)2 )
C ((x-10)2 )
D ((x+10)2 )
Explanation opens after your attempt
Correct Answer
A. ((x-5)2 )
Step 1
Concept
(x-2 -10x+25=(x-5)2 ). In exams, check the pattern using \(-2\cdot5x=-10x\).
Step 2
Why this answer is correct
The correct answer is A. ((x-5)2 ). (x-2 -10x+25=(x-5)2 ). In exams, check the pattern using \(-2\cdot5x=-10x\).
Step 3
Exam Tip
(x-2 -10x+25=(x-5)2 ) है। परीक्षा में \(-2\cdot5x=-10x\) से पैटर्न जांचें।
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पूर्ण वर्ग विधि में \(x^2-10x+7=0\) के लिए किस संख्या का प्रयोग होगा?
In completing square method for \(x^2-10x+7=0\), which number will be used?
#quadratic
#completing-square
#number-choice
A (25)
B (10)
C (5)
D (7)
Explanation opens after your attempt
Step 1
Concept
Half of (-10) is (-5), and ((-5)2 =25). In exams, add the square of half the coefficient.
Step 2
Why this answer is correct
The correct answer is A. (25). Half of (-10) is (-5), and ((-5)2 =25). In exams, add the square of half the coefficient.
Step 3
Exam Tip
(-10) का आधा (-5) है और ((-5)2 =25) होता है। परीक्षा में आधे गुणांक का वर्ग जोड़ें।
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पूर्ण वर्ग बनाकर \(x^2+8x=0\) में \(x^2+8x+16\) किसके बराबर होगा?
By completing the square in \(x^2+8x=0\), what is \(x^2+8x+16\) equal to?
#quadratic
#completing-square
#perfect-square
A ((x+4)2 )
B ((x+8)2 )
C ((x-4)2 )
D ((x+16)2 )
Explanation opens after your attempt
Correct Answer
A. ((x+4)2 )
Step 1
Concept
(x-2 +8x+16=(x+4)2 ). In exams, take half of (8), which is (4), and add its square.
Step 2
Why this answer is correct
The correct answer is A. ((x+4)2 ). (x-2 +8x+16=(x+4)2 ). In exams, take half of (8), which is (4), and add its square.
Step 3
Exam Tip
(x-2 +8x+16=(x+4)2 ) होता है। परीक्षा में (8) का आधा (4) लेकर उसका वर्ग जोड़ें।
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पूर्ण वर्ग विधि में \(x^2+6x+5=0\) के लिए किस संख्या को जोड़कर घटाया जाता है?
In completing square method for \(x^2+6x+5=0\), which number is added and subtracted?
#quadratic
#completing-square
#method
A (9)
B (6)
C (3)
D (5)
Explanation opens after your attempt
Step 1
Concept
Half of the coefficient (6) is (3), and \(3^2=9\). In exams, use (\left\(\frac{b}{2}\right\)2 ).
Step 2
Why this answer is correct
The correct answer is A. (9). Half of the coefficient (6) is (3), and \(3^2=9\). In exams, use (\left\(\frac{b}{2}\right\)2 ).
Step 3
Exam Tip
(x) के गुणांक (6) का आधा (3) है और \(3^2=9\) होता है। परीक्षा में (\left\(\frac{b}{2}\right\)2 ) का प्रयोग करें।
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