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

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

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

A. ( (a-b+c)(a+b-c) )

Step 1

Concept

Write \(-b^2+2bc-c^2\) as (-(b-c)2). Then apply difference of squares to (a-2-(b-c)2).

Step 2

Why this answer is correct

The correct answer is A. ( (a-b+c)(a+b-c) ). Write \(-b^2+2bc-c^2\) as (-(b-c)2). Then apply difference of squares to (a-2-(b-c)2).

Step 3

Exam Tip

\(-b^2+2bc-c^2\) को (-(b-c)2) लिखें। तब (a-2-(b-c)2) पर अंतर वर्ग लगाएं।

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Mathematics Answer, Explanation and Revision Hints

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

Correct Answer: A. ( (a-b+c)(a+b-c) ). Explanation: \(-b^2+2bc-c^2\) को (-(b-c)2) लिखें। तब (a-2-(b-c)2) पर अंतर वर्ग लगाएं। / Write \(-b^2+2bc-c^2\) as (-(b-c)2). Then apply difference of squares to (a-2-(b-c)2).

Which concept should I revise for this Mathematics MCQ?

Write \(-b^2+2bc-c^2\) as (-(b-c)2). Then apply difference of squares to (a-2-(b-c)2).

What exam hint can help solve this Mathematics question?

\(-b^2+2bc-c^2\) को (-(b-c)2) लिखें। तब (a-2-(b-c)2) पर अंतर वर्ग लगाएं।