Expand $(x^{22}-3x^{5} + x^{-2} - 7)\cdot(5x^4)$.
Question:
Expand $(x^{22}-3x^{5} + x^{-2} - 7)\cdot(5x^4)$.
Answer:
Let's think step by step.

user
5x^{26}-15x^9-35x^4+5x^2
Expand $(x^{22}-3x^{5} + x^{-2} - 7)\cdot(5x^4)$.
train