CBSE Class 9 Answered
Use suitable identities to Factorise 3 - 8y 3 - 62y+ 12y2
Asked by Topperlearning User | 07 Aug, 2017, 03:32: PM
Expert Answer
3 - 8y 3 - 62y+ 12y2
=3 - (2y) 3 - 6y(- 2y)
=3 - (2y) 3 – 3XX 2y(- 2y) { [(a - b) 3= a3 - b3- 3 a b(a - b)] where a = , b = 2y}
= (- 2y) 3
= (- 2y) (- 2y) (- 2y)
Answered by | 07 Aug, 2017, 05:32: PM
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