Question

Please help. Im so confused and dont know what the answer is.

Answer 1

-18b⁻⁴

Explanation:

You are distributing the -3b⁴. You just need to multiply the terms.

-3 · 6 = -18

b⁴ · b⁻⁸ = b⁻⁴

All together that makes -18b⁻⁴.