Question

factorise the following2x-x+45

Answer 1

= 2x (1-16x^4)
=2x {(1)^2 -(4x^2)^2}
=2x (1+4x^2)(1 - 4x^2)
=2x (1+4x^2){(1)^2-(2x)^2}
=2x (1+4x^2)(1+2x)(1-2x)

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