\(x^2+8x+k\) को पूर्ण वर्ग बनाने के लिए (k) का मान क्या होना चाहिए?

What should be the value of (k) to make \(x^2+8x+k\) a perfect square?

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

B. (16)

Step 1

Concept

Half of (8) is (4), and \(4^2=16\). Exam tip: halve the middle coefficient and square it.

Step 2

Why this answer is correct

The correct answer is B. (16). Half of (8) is (4), and \(4^2=16\). Exam tip: halve the middle coefficient and square it.

Step 3

Exam Tip

(8) का आधा (4) है और \(4^2=16\) है। परीक्षा में मध्य गुणांक का आधा करके उसका वर्ग लें।

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Mathematics Answer, Explanation and Revision Hints

\(x^2+8x+k\) को पूर्ण वर्ग बनाने के लिए (k) का मान क्या होना चाहिए? / What should be the value of (k) to make \(x^2+8x+k\) a perfect square?

Correct Answer: B. (16). Explanation: (8) का आधा (4) है और \(4^2=16\) है। परीक्षा में मध्य गुणांक का आधा करके उसका वर्ग लें। / Half of (8) is (4), and \(4^2=16\). Exam tip: halve the middle coefficient and square it.

Which concept should I revise for this Mathematics MCQ?

Half of (8) is (4), and \(4^2=16\). Exam tip: halve the middle coefficient and square it.

What exam hint can help solve this Mathematics question?

(8) का आधा (4) है और \(4^2=16\) है। परीक्षा में मध्य गुणांक का आधा करके उसका वर्ग लें।