Question

Simplify [ ( ½)^2 – ( ¼ )^3 ] x 2^3

Answer 1

{ [(1/2)(1/2)]-[(1/4)(1/4)(1/4)] } x 2(2)(2)
=[1/4-(1/16)(1/4)] x 8
=[ 8/4 - (8/16)(1/4) ]
=2 - (1/2)(1/4)
=2 - 1/8
=16/8 - 1/8
=15/8