यदि (x-2+sx+35=(x+5)(x+7)), तो (s) क्या है?
If (x-2+sx+35=(x+5)(x+7)), what is (s)?
Explanation opens after your attempt
C. (12)correct sum
Concept
((x+5)(x+7)=x-2+12x+35), so (s=12). In exams the sum of constant parts is the middle coefficient.
Why this answer is correct
The correct answer is C. (12) / correct sum. ((x+5)(x+7)=x-2+12x+35), so (s=12). In exams the sum of constant parts is the middle coefficient.
Exam Tip
((x+5)(x+7)=x-2+12x+35), इसलिए (s=12) है। परीक्षा में स्थिर भागों का योग मध्य गुणांक होता है।
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