\(7a^2-4ab+6b^2\) में से \(3a^2-9ab+2b^2\) घटाने पर क्या मिलेगा?
What is obtained by subtracting \(3a^2-9ab+2b^2\) from \(7a^2-4ab+6b^2\)?
Explanation opens after your attempt
A. \(4a^2+5ab+4b^2\)
Concept
Subtraction gives \(7a^2-4ab+6b^2-3a^2+9ab-2b^2\). The simplified form is \(4a^2+5ab+4b^2\).
Why this answer is correct
The correct answer is A. \(4a^2+5ab+4b^2\). Subtraction gives \(7a^2-4ab+6b^2-3a^2+9ab-2b^2\). The simplified form is \(4a^2+5ab+4b^2\).
Exam Tip
घटाने पर \(7a^2-4ab+6b^2-3a^2+9ab-2b^2\) मिलता है। सरल रूप \(4a^2+5ab+4b^2\) है।
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