\(2x^2+mx+15\) के गुणनखंड ((2x+5)(x+3)) हैं। (m) कितना है?

The factors of \(2x^2+mx+15\) are ((2x+5)(x+3)). What is (m)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

A. (11)

Step 1

Concept

The expansion is \(2x^2+6x+5x+15=2x^2+11x+15\). Exam tip: add both parts of the middle term.

Step 2

Why this answer is correct

The correct answer is A. (11). The expansion is \(2x^2+6x+5x+15=2x^2+11x+15\). Exam tip: add both parts of the middle term.

Step 3

Exam Tip

विस्तार \(2x^2+6x+5x+15=2x^2+11x+15\) है। परीक्षा में मध्य पद के दोनों हिस्से जोड़ें।

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Mathematics Answer, Explanation and Revision Hints

\(2x^2+mx+15\) के गुणनखंड ((2x+5)(x+3)) हैं। (m) कितना है? / The factors of \(2x^2+mx+15\) are ((2x+5)(x+3)). What is (m)?

Correct Answer: A. (11). Explanation: विस्तार \(2x^2+6x+5x+15=2x^2+11x+15\) है। परीक्षा में मध्य पद के दोनों हिस्से जोड़ें। / The expansion is \(2x^2+6x+5x+15=2x^2+11x+15\). Exam tip: add both parts of the middle term.

Which concept should I revise for this Mathematics MCQ?

The expansion is \(2x^2+6x+5x+15=2x^2+11x+15\). Exam tip: add both parts of the middle term.

What exam hint can help solve this Mathematics question?

विस्तार \(2x^2+6x+5x+15=2x^2+11x+15\) है। परीक्षा में मध्य पद के दोनों हिस्से जोड़ें।