perfect-square-discriminant se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.
3 questions tagged with perfect-square-discriminant.
For which value will (x-2-(a+3)x+3a=0) have equal roots?
A. (a=3)
(D=(a+3)2-12a=(a-3)2). For (D=0), (a=3).
The correct answer is A. (a=3). (D=(a+3)2-12a=(a-3)2). For (D=0), (a=3).
(D=(a+3)2-12a=(a-3)2) है। (D=0) के लिए (a=3) होगा।
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What are the roots of \(x^2-14x+13=0\) by quadratic formula?
A. (x=1,13)
(D=(-14)2-4(1)(13)=144), so \(x=\frac{14\pm12}{2}\) gives (1) and (13). In exams, if (D) is a perfect square, simplify quickly.
The correct answer is A. (x=1,13). (D=(-14)2-4(1)(13)=144), so \(x=\frac{14\pm12}{2}\) gives (1) and (13). In exams, if (D) is a perfect square, simplify quickly.
(D=(-14)2-4(1)(13)=144), इसलिए \(x=\frac{14\pm12}{2}\) से (1) और (13) मिलते हैं। परीक्षा में (D) पूर्ण वर्ग हो तो उत्तर जल्दी सरल करें।
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What are the roots of \(x^2-12x+11=0\) by quadratic formula?
A. (x=1,11)
(D=(-12)2-4(1)(11)=100), so \(x=\frac{12\pm10}{2}\) gives (1) and (11). In exams, if (D) is a perfect square, simplify quickly.
The correct answer is A. (x=1,11). (D=(-12)2-4(1)(11)=100), so \(x=\frac{12\pm10}{2}\) gives (1) and (11). In exams, if (D) is a perfect square, simplify quickly.
(D=(-12)2-4(1)(11)=100), इसलिए \(x=\frac{12\pm10}{2}\) से (1) और (11) मिलते हैं। परीक्षा में (D) पूर्ण वर्ग हो तो उत्तर जल्दी सरल करें।
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