Question 315878
{{{(-8x)^5}}} means multiply {{{(-8x)}}} by itself five times, or:
 {{{(-8x)(-8x)(-8x)(-8x)(-8x) = -32768x^5}}} Notice here that the exponent applies to both the -8 and the x, so you get {{{((-8)^5)*(x)^5 = - -32768x^5}}}
On the other hand...
{{{-8x^5}}} means multiply {{{-8}}} by {{{x^5}}} so...
{{{-8x^5 = -8x^5}}} Here, the exponent applies only to the x and not to the -8.