\(x^2+x-20\) को गुणनखंडित करें।
Factorise \(x^2+x-20\).
Explanation opens after your attempt
A. ((x+5)(x-4))correct factors
Concept
(5+(-4)=1) and (5\cdot(-4)=-20). In exams look for opposite signs when the constant is negative.
Why this answer is correct
The correct answer is A. ((x+5)(x-4)) / correct factors. (5+(-4)=1) and (5\cdot(-4)=-20). In exams look for opposite signs when the constant is negative.
Exam Tip
(5+(-4)=1) और (5\cdot(-4)=-20) है। परीक्षा में ऋणात्मक स्थिर पद के लिए विपरीत चिन्ह खोजें।
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