(3x-2-2x+7-\(x^2+5x-4\)) को सरल करने पर क्या मिलेगा?
What is obtained after simplifying (3x-2-2x+7-\(x^2+5x-4\))?
Explanation opens after your attempt
B. \(2x^2-7x+11\)
Concept
Signs inside change when the bracket is subtracted. The simplified form is \(3x^2-2x+7-x^2-5x+4=2x^2-7x+11\).
Why this answer is correct
The correct answer is B. \(2x^2-7x+11\). Signs inside change when the bracket is subtracted. The simplified form is \(3x^2-2x+7-x^2-5x+4=2x^2-7x+11\).
Exam Tip
कोष्ठक हटाते समय अंदर के चिन्ह बदलते हैं। सरल रूप \(3x^2-2x+7-x^2-5x+4=2x^2-7x+11\) है।
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