Answer:
[tex]x^3-x^2-13x+4[/tex]
Step-by-step explanation:
Distribute
[tex](x-4)(x^2+3x-1)[/tex]
[tex]x(x^2+3x-1)-4(x^2+3x-1)[/tex]
Distribute
[tex]x(x^2+3x-1)-4(x^2+3x-1)[/tex]
[tex]x^3+3x^2-x-4(x^2+3x-1)[/tex]
Distribute
[tex]x^3+3x^2-x-4(x^2+3x-1)[/tex]
[tex]x^3+3x^2-x-4x^2-12x+4[/tex]
Combine like term
[tex]x^3+3x^2-x-4^2-12x+4[/tex]
[tex]x^3-1x^2-x-12x+4[/tex]
Combine like term
[tex]x^3-x^2-x-12x+4[/tex]
[tex]x^3-x^2-13x+4[/tex]
Solution
[tex]x^3-x^2-13x+4[/tex]
