((x+5)(x-2)) में (x) का गुणांक कितना होगा?
What will be the coefficient of (x) in ((x+5)(x-2))?
Explanation opens after your attempt
C. (3)
Concept
The expansion is \(x^2+3x-10\), so the coefficient of (x) is (3). Exam tip: the sum of constants gives the middle coefficient.
Why this answer is correct
The correct answer is C. (3). The expansion is \(x^2+3x-10\), so the coefficient of (x) is (3). Exam tip: the sum of constants gives the middle coefficient.
Exam Tip
विस्तार \(x^2+3x-10\) है इसलिए (x) का गुणांक (3) है। परीक्षा में स्थिर पदों के योग से मध्य गुणांक मिलता है।
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