Question

How to simplify (x)(x-2)(9+2x)=45

Answer 1

The equation above is already in its simplest form. If you want to expand the brackets there's the guide below.
Step by step guide:
X(X-2)(9+2X)= 45


`(x^(2) +2x) (9+2x)=45`

`9x^2+2x^3+18x+4x^2=45`

`9x^2+2x^3+18x+4x^2-45=0`