Answer:
Step-by-step explanation:
To solve this problem, we need to multiple [tex]x[/tex] and -2 by [tex]x^{2} + 2x + 4[/tex] and add the results together:
[tex]x(x^{2} + 2x + 4)[/tex]
[tex]x^{3} + 2x^{2} + 4x[/tex]
[tex]-2(x^{2} + 2x + 4)[/tex]
[tex]-2x^{2} - 4x - 8[/tex]
Adding the two together give the following:
[tex](x^{3} + 2x^{2} + 4x) + (-2x^{2} - 4x - 8)[/tex]
[tex]x^{3} - 8[/tex]