simplify (-8y^2+6y-1)+(-8y^2+8y+1)(-3y^2+9y-9) Question simplify (-8y^2+6y-1)+(-8y^2+8y+1)(-3y^2+9y-9) in progress 0 Math Josephine 1 week 2021-10-04T05:21:53+00:00 2021-10-04T05:21:53+00:00 1 Answer 0

## Answers ( )

Answer:Step-by-step explanation:Given expression

First, multiply two polynomials in brackets:

No add two polynomials: