1.

Factorise :x3 -12x2 + 36x

Answer»

x3 – 12x2 + 36x
Identify a2 – 2ab + b2 =(a – b)2
=x [x2 -12x + 36]
= x[x2 – (2)(x)(6) + 62]
= x(x – 6)2



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