Question

Can someone please help with this? Multiply out and write as a monomial. No negative exponents. (2xy^-3)^2(5y)^2

Answer 1

Rules of exponents...

2^2 x^2 y^-6 * 5^2 y^2
= 4 x^2 y^-6 * 25 y^2
= 100 x^2 y^(-6+2)
= 100 x^2 y^-4
= 100 x^2 / y^4

Answer 2

Thanks!