किस विकल्प में \(2a^2-3ab+4b^2-a^2+5ab-b^2\) का सही सरल रूप है?

Which option gives the correct simplified form of \(2a^2-3ab+4b^2-a^2+5ab-b^2\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

A. \(a^2+2ab+3b^2\)

Step 1

Concept

\(2a^2-a^2=a^2\), (-3ab+5ab=2ab), and \(4b^2-b^2=3b^2\). Combine only matching variable parts.

Step 2

Why this answer is correct

The correct answer is A. \(a^2+2ab+3b^2\). \(2a^2-a^2=a^2\), (-3ab+5ab=2ab), and \(4b^2-b^2=3b^2\). Combine only matching variable parts.

Step 3

Exam Tip

\(2a^2-a^2=a^2\), (-3ab+5ab=2ab), और \(4b^2-b^2=3b^2\)। समान चर भागों को ही जोड़ें।

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Mathematics Answer, Explanation and Revision Hints

किस विकल्प में \(2a^2-3ab+4b^2-a^2+5ab-b^2\) का सही सरल रूप है? / Which option gives the correct simplified form of \(2a^2-3ab+4b^2-a^2+5ab-b^2\)?

Correct Answer: A. \(a^2+2ab+3b^2\). Explanation: \(2a^2-a^2=a^2\), (-3ab+5ab=2ab), और \(4b^2-b^2=3b^2\)। समान चर भागों को ही जोड़ें। / \(2a^2-a^2=a^2\), (-3ab+5ab=2ab), and \(4b^2-b^2=3b^2\). Combine only matching variable parts.

Which concept should I revise for this Mathematics MCQ?

\(2a^2-a^2=a^2\), (-3ab+5ab=2ab), and \(4b^2-b^2=3b^2\). Combine only matching variable parts.

What exam hint can help solve this Mathematics question?

\(2a^2-a^2=a^2\), (-3ab+5ab=2ab), और \(4b^2-b^2=3b^2\)। समान चर भागों को ही जोड़ें।