यदि ( (x-7)2=x-2-kx+49 ) है तो (k) कितना है?

If ( (x-7)2=x-2-kx+49 ), what is (k)?

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

B. (14)

Step 1

Concept

The middle term is (-14x), so (k=14). Exam tip: in (-kx), (k) is the positive coefficient.

Step 2

Why this answer is correct

The correct answer is B. (14). The middle term is (-14x), so (k=14). Exam tip: in (-kx), (k) is the positive coefficient.

Step 3

Exam Tip

मध्य पद (-14x) है इसलिए (k=14)। परीक्षा में (-kx) में (k) धनात्मक संख्या है।

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Mathematics Answer, Explanation and Revision Hints

यदि ( (x-7)2=x-2-kx+49 ) है तो (k) कितना है? / If ( (x-7)2=x-2-kx+49 ), what is (k)?

Correct Answer: B. (14). Explanation: मध्य पद (-14x) है इसलिए (k=14)। परीक्षा में (-kx) में (k) धनात्मक संख्या है। / The middle term is (-14x), so (k=14). Exam tip: in (-kx), (k) is the positive coefficient.

Which concept should I revise for this Mathematics MCQ?

The middle term is (-14x), so (k=14). Exam tip: in (-kx), (k) is the positive coefficient.

What exam hint can help solve this Mathematics question?

मध्य पद (-14x) है इसलिए (k=14)। परीक्षा में (-kx) में (k) धनात्मक संख्या है।