किस विकल्प में \(2x^2\) और \(-5x^2\) के योग का सही परिणाम है?
Which option gives the correct sum of \(2x^2\) and \(-5x^2\)?
Explanation opens after your attempt
C. \(-3x^2\)
Concept
The coefficients are (2+(-5)=-3), and the variable part \(x^2\) stays the same. So the sum is \(-3x^2\).
Why this answer is correct
The correct answer is C. \(-3x^2\). The coefficients are (2+(-5)=-3), and the variable part \(x^2\) stays the same. So the sum is \(-3x^2\).
Exam Tip
गुणांक (2+(-5)=-3) हैं और चर भाग \(x^2\) वही रहता है। इसलिए योग \(-3x^2\) है।
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