\(2x^2+mx+15\) 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)?
Explanation opens after your attempt
A. (11)
Concept
The expansion is \(2x^2+6x+5x+15=2x^2+11x+15\). Exam tip: add both parts of the middle term.
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.
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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