\(9x^2-1\) का सही गुणनखंडन क्या है?

What is the correct factorisation of \(9x^2-1\)?

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

D. ((3x-1)(3x+1))

Step 1

Concept

(9x-2=(3x)2) and \(1=1^2\). So the difference of squares becomes ((3x-1)(3x+1)).

Step 2

Why this answer is correct

The correct answer is D. ((3x-1)(3x+1)). (9x-2=(3x)2) and \(1=1^2\). So the difference of squares becomes ((3x-1)(3x+1)).

Step 3

Exam Tip

(9x-2=(3x)2) और \(1=1^2\) है। इसलिए वर्गों का अंतर ((3x-1)(3x+1)) बनेगा।

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Mathematics Answer, Explanation and Revision Hints

\(9x^2-1\) का सही गुणनखंडन क्या है? / What is the correct factorisation of \(9x^2-1\)?

Correct Answer: D. ((3x-1)(3x+1)). Explanation: (9x-2=(3x)2) और \(1=1^2\) है। इसलिए वर्गों का अंतर ((3x-1)(3x+1)) बनेगा। / (9x-2=(3x)2) and \(1=1^2\). So the difference of squares becomes ((3x-1)(3x+1)).

Which concept should I revise for this Mathematics MCQ?

(9x-2=(3x)2) and \(1=1^2\). So the difference of squares becomes ((3x-1)(3x+1)).

What exam hint can help solve this Mathematics question?

(9x-2=(3x)2) और \(1=1^2\) है। इसलिए वर्गों का अंतर ((3x-1)(3x+1)) बनेगा।