Q. 4 J5.0( 1 Vote )

Factorize :

1 – 6x + 9x2

Answer :

Given 1 – 6x + 9x2= (1)2 – 2× 1 ×3x + (3x)2


Comparing with (a– b)2 = a2 + b2 – 2a×b


a = 1 and b = 3x


So, 1 – 6x + 9x2 = (1 – 3x)(1 – 3x)


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