Question

This needs to be simplified and clearly i don’t know the answer -23b^4+(-7b^4)

Answer 1

$\text{Hello there!}\\ \\ \text{In this question, you need to simplify by adding like terms}\\ \\\text{Both terms are}\,\,b^4,\,\,\text{in which you can combine them}\\\\-23b^4+(-7b^4)\\\\\text{Add them}\\\\-30b^4\\\\\large\boxed{-30b^4}$

Answer 2

The answer is -16b^4

-23b^4-7b^4= -30^4
And simplified it is -16b^4