\(6x^2-3x+2\) और \(-2x^2+7x-9\) का योग क्या होगा?
What is the sum of \(6x^2-3x+2\) and \(-2x^2+7x-9\)?
Explanation opens after your attempt
A. \(4x^2+4x-7\)
Concept
Adding like terms gives \(6x^2-2x^2=4x^2\), (-3x+7x=4x), and (2-9=-7).
Why this answer is correct
The correct answer is A. \(4x^2+4x-7\). Adding like terms gives \(6x^2-2x^2=4x^2\), (-3x+7x=4x), and (2-9=-7).
Exam Tip
समान पद जोड़ने पर \(6x^2-2x^2=4x^2\), (-3x+7x=4x), और (2-9=-7)।
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