Question

Simplify the following: i) ( 4x + 2y )3 + ( 4x – 2y )3 ii) ( x2 + x - 2 ) ( x2 – x + 2 )

Answer 1

Answer:

Step-by-step explanation:

(i) (4x+2y)3+(4x-2y)3

=(12x+6y)+(12x-6y)

=12x +12x +6y-6y

=24x

(ii)

($(x^{2}+x-2)(x^{2} -(x-2))\\(x^{2})^{2}-(x-2)^{2}\\x^{4} -(x^{2} -2x+4)\\x^{4} -x^{2} +2x-4$