((a-b)2) का सही विस्तार कौन-सा है?

Which is the correct expansion of ((a-b)2)?

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

B. \(a^2-2ab+b^2\)

Step 1

Concept

In ((a-b)2), the middle term is (-2ab). Never ignore the negative sign.

Step 2

Why this answer is correct

The correct answer is B. \(a^2-2ab+b^2\). In ((a-b)2), the middle term is (-2ab). Never ignore the negative sign.

Step 3

Exam Tip

((a-b)2) में मध्य पद (-2ab) होता है। ऋण चिह्न को कभी न छोड़ें।

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Mathematics Answer, Explanation and Revision Hints

((a-b)2) का सही विस्तार कौन-सा है? / Which is the correct expansion of ((a-b)2)?

Correct Answer: B. \(a^2-2ab+b^2\). Explanation: ((a-b)2) में मध्य पद (-2ab) होता है। ऋण चिह्न को कभी न छोड़ें। / In ((a-b)2), the middle term is (-2ab). Never ignore the negative sign.

Which concept should I revise for this Mathematics MCQ?

In ((a-b)2), the middle term is (-2ab). Never ignore the negative sign.

What exam hint can help solve this Mathematics question?

((a-b)2) में मध्य पद (-2ab) होता है। ऋण चिह्न को कभी न छोड़ें।