Question 1/5
Expert Mathematics
Quadratic Equations Introduction to Quadratic Equations Class 10 Level 30
यदि \(x^2+bx+c=0\) के मूल (-6) और (13) हैं, तो (b+c) का मान क्या है?
If the roots of \(x^2+bx+c=0\) are (-6) and (13), what is the value of (b+c)?
Explanation opens after your attempt
Step 1
Concept
The sum of roots is (7), so (b=-7), and the product is (-78), so (c=-78). Therefore (b+c=-85).
Step 2
Why this answer is correct
The correct answer is A. (-85). The sum of roots is (7), so (b=-7), and the product is (-78), so (c=-78). Therefore (b+c=-85).
Step 3
Exam Tip
मूलों का योग (7) है, इसलिए (b=-7), और गुणनफल (-78) है, इसलिए (c=-78)। अतः (b+c=-85)।
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Question 2/5
Expert Mathematics
Quadratic Equations Introduction to Quadratic Equations Class 10 Level 29
यदि \(x^2+bx+c=0\) के मूल (-5) और (11) हैं, तो (b+c) का मान क्या है?
If the roots of \(x^2+bx+c=0\) are (-5) and (11), what is the value of (b+c)?
Explanation opens after your attempt
Step 1
Concept
The sum of roots is (6), so (b=-6), and the product is (-55), so (c=-55). Therefore (b+c=-61).
Step 2
Why this answer is correct
The correct answer is A. (-61). The sum of roots is (6), so (b=-6), and the product is (-55), so (c=-55). Therefore (b+c=-61).
Step 3
Exam Tip
मूलों का योग (6) है, इसलिए (b=-6), और गुणनफल (-55) है, इसलिए (c=-55)। अतः (b+c=-61)।
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Question 3/5
Expert Mathematics
Quadratic Equations Introduction to Quadratic Equations Class 10 Level 28
यदि \(x^2+bx+c=0\) के मूल (-4) और (9) हैं, तो (b+c) का मान क्या है?
If the roots of \(x^2+bx+c=0\) are (-4) and (9), what is the value of (b+c)?
Explanation opens after your attempt
Step 1
Concept
The sum of roots is (5), so (b=-5), and the product is (-36), so (c=-36). Therefore (b+c=-41).
Step 2
Why this answer is correct
The correct answer is A. (-41). The sum of roots is (5), so (b=-5), and the product is (-36), so (c=-36). Therefore (b+c=-41).
Step 3
Exam Tip
मूलों का योग (5) है, इसलिए (b=-5), और गुणनफल (-36) है, इसलिए (c=-36)। अतः (b+c=-41)।
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Question 4/5
Hard Mathematics
Quadratic Equations Introduction to Quadratic Equations Class 10 Level 30
यदि \(x^2+bx+c=0\) के मूल (-3) और (8) हैं, तो (b+c) का मान क्या है?
If the roots of \(x^2+bx+c=0\) are (-3) and (8), what is the value of (b+c)?
Explanation opens after your attempt
Step 1
Concept
The sum of roots is (5), so (b=-5), and the product is (-24), so (c=-24). Therefore (b+c=-29).
Step 2
Why this answer is correct
The correct answer is A. (-29). The sum of roots is (5), so (b=-5), and the product is (-24), so (c=-24). Therefore (b+c=-29).
Step 3
Exam Tip
मूलों का योग (5) है, इसलिए (b=-5), और गुणनफल (-24) है, इसलिए (c=-24)। अतः (b+c=-29)।
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Question 5/5
Hard Mathematics
Quadratic Equations Introduction to Quadratic Equations Class 10 Level 29
यदि \(x^2+bx+c=0\) के मूल (-2) और (7) हैं, तो (b+c) का मान क्या है?
If the roots of \(x^2+bx+c=0\) are (-2) and (7), what is the value of (b+c)?
Explanation opens after your attempt
Step 1
Concept
The sum of roots is (5), so (b=-5), and the product is (-14), so (c=-14). Therefore (b+c=-19).
Step 2
Why this answer is correct
The correct answer is A. (-19). The sum of roots is (5), so (b=-5), and the product is (-14), so (c=-14). Therefore (b+c=-19).
Step 3
Exam Tip
मूलों का योग (5) है, इसलिए (b=-5), और गुणनफल (-14) है, इसलिए (c=-14)। अतः (b+c=-19)।
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