\(5x^2+2x-7\) में से \(2x^2-3x+4\) घटाने पर क्या मिलेगा?
What is obtained by subtracting \(2x^2-3x+4\) from \(5x^2+2x-7\)?
Explanation opens after your attempt
C. \(3x^2+5x-11\)
Concept
On subtracting, (5x-2+2x-7-\(2x^2-3x+4\)=3x-2+5x-11). Exam tip: change signs when removing brackets.
Why this answer is correct
The correct answer is C. \(3x^2+5x-11\). On subtracting, (5x-2+2x-7-\(2x^2-3x+4\)=3x-2+5x-11). Exam tip: change signs when removing brackets.
Exam Tip
घटाने पर (5x-2+2x-7-\(2x^2-3x+4\)=3x-2+5x-11) है। परीक्षा में कोष्ठक खोलते समय चिह्न बदलें।
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