\(2x^2+mx+10\) का गुणनखंड रूप ((2x+5)(x+2)) है। (m) क्या होगा?
The factorised form of \(2x^2+mx+10\) is ((2x+5)(x+2)). What is (m)?
Explanation opens after your attempt
C. (9)correct middle coefficient
Concept
The cross terms are (4x) and (5x), whose sum is (9x). In exams add both cross terms.
Why this answer is correct
The correct answer is C. (9) / correct middle coefficient. The cross terms are (4x) and (5x), whose sum is (9x). In exams add both cross terms.
Exam Tip
क्रॉस पद (4x) और (5x) हैं, जिनका योग (9x) है। परीक्षा में दोनों क्रॉस पद जोड़ें।
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