Question

Help me with math plz ASAP please

Answer 1

(-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.

Answer 2

Answer:

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

Step-by-step explanation:

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