Q+12-2q+44=0
-q=-44-12
q=56
Step-by-step explanation:

(8+6)/(7+8+6)
=14/21
=0.67
=67%
Fisrst one is just add the functions
(f+g)(x)=f(x)+g(x)=
8x^2+16x+6+x^3-3x^2-9=
(f+g)(x)=x^3+5x^2+16x-3
multiply
ok
f(x)g(x)=(x^3-4x+2)(x^2+2)
just multiply and expand yourself because I don't have my graphing calculator with me right now