\(9a^2-12ab+4b^2-c^2\) को गुणनखंडित करें।
Factorise \(9a^2-12ab+4b^2-c^2\).
Explanation opens after your attempt
A. ((3a-2b-c)(3a-2b+c))
Concept
(9a-2-12ab+4b-2=(3a-2b)2). Exam tip: after the perfect square, use the difference with \(c^2\).
Why this answer is correct
The correct answer is A. ((3a-2b-c)(3a-2b+c)). (9a-2-12ab+4b-2=(3a-2b)2). Exam tip: after the perfect square, use the difference with \(c^2\).
Exam Tip
(9a-2-12ab+4b-2=(3a-2b)2) है। परीक्षा में पूर्ण वर्ग के बाद \(c^2\) का अंतर लगाएं।
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