Answer:
6x^3+11x^2-14x+12
Step-by-step explanation:
We just simply add like terms (terms with same power of x):
[tex]6x^3+(4x^2+7x^2)+(-5x+-9x)+(2+10)[/tex]
Like terms are in brackets now
So you just simplify now to give you:
[tex]6x^3+11x^2-14x+12[/tex]
