\(x^2+8x\) को पूर्ण वर्ग बनाने के लिए कौन सा पद जोड़ना चाहिए?
Which term should be added to \(x^2+8x\) to make it a perfect square?
Explanation opens after your attempt
D. (16)
Concept
Half of (8) is (4), and \(4^2=16\). Exam tip: add the square of half the coefficient.
Why this answer is correct
The correct answer is D. (16). Half of (8) is (4), and \(4^2=16\). Exam tip: add the square of half the coefficient.
Exam Tip
(8) का आधा (4) और \(4^2=16\) है। परीक्षा में आधे गुणांक का वर्ग जोड़ें।
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