-4x^3*2y^-2*5y^5*x^-8

Question

simplify

Answer 1

When multiplying, exponents to like bases add.

example

x^3 * x^9 * x^-2= x^10

Answer 2

so is the right answer -4x^-5*10y^3 ?

Answer 3

standard practice would be to put the coefficents in front...or...

-40x^-5y³ ?