\(5x^2-45\) का पूर्ण गुणनखंडन क्या होगा?
What will be the complete factorisation of \(5x^2-45\)?
Explanation opens after your attempt
B. (5(x-3)(x+3))
Concept
First take (5) common and split \(x^2-9\) by difference of squares. Exam tip: look further after common factor.
Why this answer is correct
The correct answer is B. (5(x-3)(x+3)). First take (5) common and split \(x^2-9\) by difference of squares. Exam tip: look further after common factor.
Exam Tip
पहले (5) समान निकालें और \(x^2-9\) को वर्गों के अंतर से तोड़ें। परीक्षा में समान गुणनखंड के बाद आगे देखें।
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