\(x^2+6x+k\) को पूर्ण वर्ग बनाने के लिए (k) का मान क्या होना चाहिए?
What should be the value of (k) to make \(x^2+6x+k\) a perfect square?
Explanation opens after your attempt
B. (9)
Concept
Half of (6) is (3), so the constant term should be \(3^2=9\). Exam tip: square half the coefficient of (x).
Why this answer is correct
The correct answer is B. (9). Half of (6) is (3), so the constant term should be \(3^2=9\). Exam tip: square half the coefficient of (x).
Exam Tip
(6x) का आधा (3x) है इसलिए स्थिर पद \(3^2=9\) चाहिए। परीक्षा में (x) के गुणांक का आधा करके वर्ग करें।
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