Question

Combine like terms . Please help me I am an vacation and I don't know how to do this

Answer 1

14.2x^4
16.13b-10
18.5y+10
20.5a^3
22.2b^2+8a

Answer 2

I can help with the first problem.

7x to the 4th power is 2401x
5x to the 4th power is 625x

2401x - 625x = 1776x

Hope this helped a bit.