Answer:
the expression 6x should be 6x^2
Step-by-step explanation:
[tex](3x+2) (x^2+2x+4)[/tex]
First multiply 3x inside the second parenthesis
[tex](3x) (x^2+2x+4)=3x^3+6x^2+12x[/tex]
x^2 2x 4
3x 3x^3 6x^2 12x
2 2x^2 4x 8
the expression 6x should be 6x^2
because 2x times 3x is 6x^2
