Question

Find the product: 7y^2(y^4 + 8y^3 - 6y^2 - 5y - 8)

Answer 1

7y^2(y^4 + 8y^3 - 6y^2 - 5y - 8)
=
7y^6 + 56y^5 - 42y^4 - 35y^3 - 56y^2