Question 1107422
Simplify this expression: 
 -9g(-2g+g^2)+3(g^2+4)
 Distribute
18g^2 - 9g^3 + 3g^2 + 12
combine like terms
-9g^3 + 18g^2 + 3g^2 + 12
-9g^3 + 21g^2 + 12
Factor out -3
-3(3g^3 - 7g^2 - 4)