Answered

Add (8x^3-8x^2-8x-9)and(-4x^3-15x^2+4x-6

Sagot :

Mlcparra16id
We combine like terms:
[tex]8x^3-8x^2-8x-9-4x^3-15x^2+4x-6 \\ =(8x^3-4x^3)+(-8x^2-15x^2)+(-8x+4x)+(-9-6) \\ =4x^3-23x^2-4x-15[/tex]
Jers15id
Combine like terms, like terms are terms which have same variable with same exponent.

8x³-8x²-8x-9-4x³-15x²+4x-6
=4x³-23x²-4x-15

Hope this helps =)