Ok here is the problem
9x^3 - 7x^2 + 4x^2 - x + 4x^3 - 3x^2
I got 13x^3-6a-x
but the answer is 13x^3-x
Sorry im sorry the 6a was just 6x^2
My answer still is 13x^3-6x^2-x
but it reads on the book 13x^3-x
And i said the same thing about it would have to be + 3x^2 for the answer to be 13x^3-x
Well my class is tommorrow so i am going to tell this to my teacher.