समीकरण \(x^2+9x+20=0\) को गुणनखंड रूप में कौन-सा लिखा जा सकता है?
Which factor form can represent \(x^2+9x+20=0\)?
Explanation opens after your attempt
A. ((x+4)(x+5)=0)
Concept
\(4\cdot5=20\) and (4+5=9). Therefore the correct factors are ((x+4)(x+5)).
Why this answer is correct
The correct answer is A. ((x+4)(x+5)=0). \(4\cdot5=20\) and (4+5=9). Therefore the correct factors are ((x+4)(x+5)).
Exam Tip
\(4\cdot5=20\) और (4+5=9) है। इसलिए सही गुणनखंड ((x+4)(x+5)) हैं।
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