Question 443533
{{{(x^4)^-3 * 2x^4}}}
={{{(x^((4)(-3)))*2x^4}}}
={{{(x^-12)*(2x^4)}}}
={{{(2)*(x^-12)*(x^4)}}}
={{{(2)*(x^(-12+(4)))}}}
={{{(2)*(x^-8)}}}
={{{2x^-8}}}