Question 946628
Maybe you have this:


((4x)^3-(2x)^2+8x-8)/(2x+1)


The rendering tags make it {{{((4x)^3-(2x)^2+8x-8)/(2x+1)}}}.



{{{highlight_green((64x^3-4x^2+8x-8)/(2x+1))}}}


{{{(4(16x^3-x^2+2x-2)/(2x+1))}}}


Would you try polynomial division to find if a remainder occurs, ignoring the factor of 4 ?  If a remainder occurs, then the expression is a simple as you can make it, or the green-highlighted expression itself is "simplest".