\(5x^2-45\) का पूर्ण गुणनखंडन क्या होगा?

What will be the complete factorisation of \(5x^2-45\)?

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

B. (5(x-3)(x+3))

Step 1

Concept

First take (5) common and split \(x^2-9\) by difference of squares. Exam tip: look further after common factor.

Step 2

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.

Step 3

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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Mathematics Answer, Explanation and Revision Hints

\(5x^2-45\) का पूर्ण गुणनखंडन क्या होगा? / What will be the complete factorisation of \(5x^2-45\)?

Correct Answer: B. (5(x-3)(x+3)). Explanation: पहले (5) समान निकालें और \(x^2-9\) को वर्गों के अंतर से तोड़ें। परीक्षा में समान गुणनखंड के बाद आगे देखें। / First take (5) common and split \(x^2-9\) by difference of squares. Exam tip: look further after common factor.

Which concept should I revise for this Mathematics MCQ?

First take (5) common and split \(x^2-9\) by difference of squares. Exam tip: look further after common factor.

What exam hint can help solve this Mathematics question?

पहले (5) समान निकालें और \(x^2-9\) को वर्गों के अंतर से तोड़ें। परीक्षा में समान गुणनखंड के बाद आगे देखें।