Q. 4 I5.0( 1 Vote )

Factorize :

36 – 49x2

Answer :

Given 36 – 49x2= (6)2 – (7x)2


Comparing with a2 – b2 = (a + b) (a – b)


a = 6 and b = 7x


So, 36 – 49x2= (6 + 7x)(6 – 7x)


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