किस विकल्प में \(x^2-3x+2\) और \(2x^2+x-5\) का योग सही है?
Which option gives the correct sum of \(x^2-3x+2\) and \(2x^2+x-5\)?
Explanation opens after your attempt
A. \(3x^2-2x-3\)
Concept
In the sum, \(x^2+2x^2=3x^2\), (-3x+x=-2x), and (2-5=-3). Add like terms separately.
Why this answer is correct
The correct answer is A. \(3x^2-2x-3\). In the sum, \(x^2+2x^2=3x^2\), (-3x+x=-2x), and (2-5=-3). Add like terms separately.
Exam Tip
योग में \(x^2+2x^2=3x^2\), (-3x+x=-2x), और (2-5=-3) है। समान पदों को अलग-अलग जोड़ें।
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