यदि ( (x+3)2=x-2+kx+9 ) है तो (k) का मान क्या होगा?

If ( (x+3)2=x-2+kx+9 ), what is the value of (k)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. (6)

Step 1

Concept

The middle term is \(2\times x\times3=6x\), so (k=6). Exam tip: find the coefficient from the middle term.

Step 2

Why this answer is correct

The correct answer is B. (6). The middle term is \(2\times x\times3=6x\), so (k=6). Exam tip: find the coefficient from the middle term.

Step 3

Exam Tip

मध्य पद \(2\times x\times3=6x\) है इसलिए (k=6)। परीक्षा में मध्य पद से गुणांक निकालें।

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Mathematics Answer, Explanation and Revision Hints

यदि ( (x+3)2=x-2+kx+9 ) है तो (k) का मान क्या होगा? / If ( (x+3)2=x-2+kx+9 ), what is the value of (k)?

Correct Answer: B. (6). Explanation: मध्य पद \(2\times x\times3=6x\) है इसलिए (k=6)। परीक्षा में मध्य पद से गुणांक निकालें। / The middle term is \(2\times x\times3=6x\), so (k=6). Exam tip: find the coefficient from the middle term.

Which concept should I revise for this Mathematics MCQ?

The middle term is \(2\times x\times3=6x\), so (k=6). Exam tip: find the coefficient from the middle term.

What exam hint can help solve this Mathematics question?

मध्य पद \(2\times x\times3=6x\) है इसलिए (k=6)। परीक्षा में मध्य पद से गुणांक निकालें।