Question

(5y^10)^2.y^-12

Answer 1

\[\huge (a^b)^c=a^{b \times c}\]\[\huge a^{-b}=\frac{1}{a^b}\]\[\huge a^b \times a^c = a^{b+c}\]use these

Answer 2

so my answer will be 5y^32

Answer 3

5y^20 . y^-12
5y^(20-12)
5y^8