( (x-y)2-\(x^2+y^2\) ) का सरल रूप क्या है?

What is the simplified form of ( (x-y)2-\(x^2+y^2\) )?

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

B. (-2xy)

Step 1

Concept

( (x-y)2=x-2-2xy+y-2 ), subtracting \(x^2+y^2\) gives (-2xy). Exam tip: watch the negative middle term.

Step 2

Why this answer is correct

The correct answer is B. (-2xy). ( (x-y)2=x-2-2xy+y-2 ), subtracting \(x^2+y^2\) gives (-2xy). Exam tip: watch the negative middle term.

Step 3

Exam Tip

( (x-y)2=x-2-2xy+y-2 ) से \(x^2+y^2\) घटाने पर (-2xy) मिलता है। परीक्षा में ऋणात्मक मध्य पद पर ध्यान दें।

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Mathematics Answer, Explanation and Revision Hints

( (x-y)2-\(x^2+y^2\) ) का सरल रूप क्या है? / What is the simplified form of ( (x-y)2-\(x^2+y^2\) )?

Correct Answer: B. (-2xy). Explanation: ( (x-y)2=x-2-2xy+y-2 ) से \(x^2+y^2\) घटाने पर (-2xy) मिलता है। परीक्षा में ऋणात्मक मध्य पद पर ध्यान दें। / ( (x-y)2=x-2-2xy+y-2 ), subtracting \(x^2+y^2\) gives (-2xy). Exam tip: watch the negative middle term.

Which concept should I revise for this Mathematics MCQ?

( (x-y)2=x-2-2xy+y-2 ), subtracting \(x^2+y^2\) gives (-2xy). Exam tip: watch the negative middle term.

What exam hint can help solve this Mathematics question?

( (x-y)2=x-2-2xy+y-2 ) से \(x^2+y^2\) घटाने पर (-2xy) मिलता है। परीक्षा में ऋणात्मक मध्य पद पर ध्यान दें।