Question

Simplify the expression using properties of exponents. -16a-3b-5 2a-4b2

Answer 1

`a^n\cdot a^m=a^(n+m)\\\\-16a^(-3)b^(-5)\cdot2a^(-4)b^2=(-16\cdot2)(a^(-3)a^(-4))(b^(-5)b^2})\\\\=-32a^(-3+(-4))b^(-5+2)=\boxed{-32a^(-7)b^(-3)}`