\(4a^2-4ab+b^2-25c^2\) का सही गुणनखंड कौन सा है?

Which is the correct factorisation of \(4a^2-4ab+b^2-25c^2\)?

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

B. ( (2a-b-5c)(2a-b+5c) )

Step 1

Concept

Write \(4a^2-4ab+b^2\) as ((2a-b)2). Exam tip: then use (25c-2=(5c)2) for difference of squares.

Step 2

Why this answer is correct

The correct answer is B. ( (2a-b-5c)(2a-b+5c) ). Write \(4a^2-4ab+b^2\) as ((2a-b)2). Exam tip: then use (25c-2=(5c)2) for difference of squares.

Step 3

Exam Tip

\(4a^2-4ab+b^2\) को ((2a-b)2) लिखें। परीक्षा में फिर (25c-2=(5c)2) लगाकर अंतर वर्ग करें।

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Mathematics Answer, Explanation and Revision Hints

\(4a^2-4ab+b^2-25c^2\) का सही गुणनखंड कौन सा है? / Which is the correct factorisation of \(4a^2-4ab+b^2-25c^2\)?

Correct Answer: B. ( (2a-b-5c)(2a-b+5c) ). Explanation: \(4a^2-4ab+b^2\) को ((2a-b)2) लिखें। परीक्षा में फिर (25c-2=(5c)2) लगाकर अंतर वर्ग करें। / Write \(4a^2-4ab+b^2\) as ((2a-b)2). Exam tip: then use (25c-2=(5c)2) for difference of squares.

Which concept should I revise for this Mathematics MCQ?

Write \(4a^2-4ab+b^2\) as ((2a-b)2). Exam tip: then use (25c-2=(5c)2) for difference of squares.

What exam hint can help solve this Mathematics question?

\(4a^2-4ab+b^2\) को ((2a-b)2) लिखें। परीक्षा में फिर (25c-2=(5c)2) लगाकर अंतर वर्ग करें।