( (a-b)2-\(a^2+b^2\) ) किसके बराबर है?

What is ( (a-b)2-\(a^2+b^2\) ) equal to?

Explanation opens after your attempt
Correct Answer

B. (-2ab)

Step 1

Concept

( (a-b)2=a-2-2ab+b-2 ), so subtracting leaves (-2ab). Exam tip: remember the negative middle term.

Step 2

Why this answer is correct

The correct answer is B. (-2ab). ( (a-b)2=a-2-2ab+b-2 ), so subtracting leaves (-2ab). Exam tip: remember the negative middle term.

Step 3

Exam Tip

( (a-b)2=a-2-2ab+b-2 ) है इसलिए घटाने पर (-2ab) बचता है। परीक्षा में नकारात्मक मध्य पद याद रखें।

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FAQs

Mathematics Answer, Explanation and Revision Hints

( (a-b)2-\(a^2+b^2\) ) किसके बराबर है? / What is ( (a-b)2-\(a^2+b^2\) ) equal to?

Correct Answer: B. (-2ab). Explanation: ( (a-b)2=a-2-2ab+b-2 ) है इसलिए घटाने पर (-2ab) बचता है। परीक्षा में नकारात्मक मध्य पद याद रखें। / ( (a-b)2=a-2-2ab+b-2 ), so subtracting leaves (-2ab). Exam tip: remember the negative middle term.

Which concept should I revise for this Mathematics MCQ?

( (a-b)2=a-2-2ab+b-2 ), so subtracting leaves (-2ab). Exam tip: remember the negative middle term.

What exam hint can help solve this Mathematics question?

( (a-b)2=a-2-2ab+b-2 ) है इसलिए घटाने पर (-2ab) बचता है। परीक्षा में नकारात्मक मध्य पद याद रखें।

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