\(x^2+2xy+y^2-9z^2\) का सही गुणनखंड कौन सा है?

Which is the correct factorisation of \(x^2+2xy+y^2-9z^2\)?

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

B. ( (x+y-3z)(x+y+3z) )

Step 1

Concept

First convert \(x^2+2xy+y^2\) into ((x+y)2). Exam tip: after forming a perfect square, apply difference of squares.

Step 2

Why this answer is correct

The correct answer is B. ( (x+y-3z)(x+y+3z) ). First convert \(x^2+2xy+y^2\) into ((x+y)2). Exam tip: after forming a perfect square, apply difference of squares.

Step 3

Exam Tip

पहले \(x^2+2xy+y^2\) को ((x+y)2) बनाएं। परीक्षा में पूर्ण वर्ग के बाद अंतर वर्ग लगाएं।

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Mathematics Answer, Explanation and Revision Hints

\(x^2+2xy+y^2-9z^2\) का सही गुणनखंड कौन सा है? / Which is the correct factorisation of \(x^2+2xy+y^2-9z^2\)?

Correct Answer: B. ( (x+y-3z)(x+y+3z) ). Explanation: पहले \(x^2+2xy+y^2\) को ((x+y)2) बनाएं। परीक्षा में पूर्ण वर्ग के बाद अंतर वर्ग लगाएं। / First convert \(x^2+2xy+y^2\) into ((x+y)2). Exam tip: after forming a perfect square, apply difference of squares.

Which concept should I revise for this Mathematics MCQ?

First convert \(x^2+2xy+y^2\) into ((x+y)2). Exam tip: after forming a perfect square, apply difference of squares.

What exam hint can help solve this Mathematics question?

पहले \(x^2+2xy+y^2\) को ((x+y)2) बनाएं। परीक्षा में पूर्ण वर्ग के बाद अंतर वर्ग लगाएं।