(3x-2-2x+7-\(x^2+5x-4\)) को सरल करने पर क्या मिलेगा?

What is obtained after simplifying (3x-2-2x+7-\(x^2+5x-4\))?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. \(2x^2-7x+11\)

Step 1

Concept

Signs inside change when the bracket is subtracted. The simplified form is \(3x^2-2x+7-x^2-5x+4=2x^2-7x+11\).

Step 2

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 \(3x^2-2x+7-x^2-5x+4=2x^2-7x+11\).

Step 3

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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Mathematics Answer, Explanation and Revision Hints

(3x-2-2x+7-\(x^2+5x-4\)) को सरल करने पर क्या मिलेगा? / What is obtained after simplifying (3x-2-2x+7-\(x^2+5x-4\))?

Correct Answer: B. \(2x^2-7x+11\). Explanation: कोष्ठक हटाते समय अंदर के चिन्ह बदलते हैं। सरल रूप \(3x^2-2x+7-x^2-5x+4=2x^2-7x+11\) है। / Signs inside change when the bracket is subtracted. The simplified form is \(3x^2-2x+7-x^2-5x+4=2x^2-7x+11\).

Which concept should I revise for this Mathematics MCQ?

Signs inside change when the bracket is subtracted. The simplified form is \(3x^2-2x+7-x^2-5x+4=2x^2-7x+11\).

What exam hint can help solve this Mathematics question?

कोष्ठक हटाते समय अंदर के चिन्ह बदलते हैं। सरल रूप \(3x^2-2x+7-x^2-5x+4=2x^2-7x+11\) है।