कौन सा विकल्प \(x^2-2x-15=0\) का गुणनखंड रूप है?
Which option is the factor form of \(x^2-2x-15=0\)?
Explanation opens after your attempt
Correct Answer
A. \((x-5)(x+3)=0\)
Concept
Expanding ((x-5)(x+3)) gives \(x^2-2x-15\). To check factors, expand them.
Why this answer is correct
The correct answer is A. \((x-5)(x+3)=0\). Expanding ((x-5)(x+3)) gives \(x^2-2x-15\). To check factors, expand them.
Exam Tip
((x-5)(x+3)) फैलाने पर \(x^2-2x-15\) मिलता है। गुणनखंड जांचने के लिए विस्तार करें।
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