Question

Find the product: -9y^2(y^4-7y^3-y^2+2y+5)

Answer 1

\[\large{-9y^6+63y^5+9y^4-18y^3-45y^2}\]

Answer 2

multiply the coefficients and add the degree
=> -9y^6 + 63y^5 +9y^4 -18y^3-45y^2

Answer 3

-9 y^6+63 y^5+9 y^4-18 y^3-45 y^2

Answer 4

thanks for the help :)