\(7x^2-2xy+3y^2-4x^2+6xy-8y^2\) को सरल करने पर क्या मिलेगा?
What is obtained after simplifying \(7x^2-2xy+3y^2-4x^2+6xy-8y^2\)?
Explanation opens after your attempt
A. \(3x^2+4xy-5y^2\)
Concept
\(7x^2-4x^2=3x^2\), (-2xy+6xy=4xy), and \(3y^2-8y^2=-5y^2\).
Why this answer is correct
The correct answer is A. \(3x^2+4xy-5y^2\). \(7x^2-4x^2=3x^2\), (-2xy+6xy=4xy), and \(3y^2-8y^2=-5y^2\).
Exam Tip
\(7x^2-4x^2=3x^2\), (-2xy+6xy=4xy), और \(3y^2-8y^2=-5y^2\)।
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