1.

206 + 96* - 86 - 120 के गुणनखण्ड हैं

Answer»

you have to use id. (a+b)square and then take out common

~(2a+3b)sq.-8a-12b

=(2a+3b)sq.-4(2a-3b)

taking (2a+3b) common

=(2a+3b)[(2a+3b) -4]



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