Question

Help me with math plz ASAP please

Answer 1

`\large\boxed{-21c^3y^8}`

Explanation:

`-3y^8\cdot7c^3=(-3\cdot7)(y^8c^3)=-21c^3y^8`

Answer 2

(-3)(7) = -21.

y^8 and c^3 have different bases (y and c) and thus cannot be merged.

So we end up with -21c^3y^8.