Question 483656
{{{(-8pq^2)(-4p^4q^5)}}}....first multiply {{{-8}}} and {{{-4}}}; since both negative, their product is positive


={{{(32pq^2)(p^4q^5)}}}.....now multiply {{{p}}} and {{{p^4}}}; apply rule for multiplication:If {{{m}}} and {{{n}}} are natural numbers, and {{{a}}} is a real number, then {{{a^m * a^n = a^(m + n)}}} 


so, you will have

={{{32p^5q^7}}}