\(5x^2-20\) का पूर्ण गुणनखंड रूप कौन सा है?
Which is the complete factorised form of \(5x^2-20\)?
Explanation opens after your attempt
B. (5(x-2)(x+2))
Concept
First take common factor (5), then factor \(x^2-4\). Exam tip: apply identities after taking the common factor.
Why this answer is correct
The correct answer is B. (5(x-2)(x+2)). First take common factor (5), then factor \(x^2-4\). Exam tip: apply identities after taking the common factor.
Exam Tip
पहले (5) सामान्य गुणनखंड लें और फिर \(x^2-4\) को तोड़ें। परीक्षा में सामान्य गुणनखंड के बाद पहचान लगाएं।
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