Respuesta :
Answer:
[tex]3x^4+4x^3+3x^2+14x[/tex]
Step-by-step explanation:
[tex](3x^2-2x+7)(x^2+2x)[/tex]
[tex]3x^4+6x^3-2x^3-4x^2+7x^2+14x[/tex]
[tex]=3x^4+4x^3+3x^2+14x[/tex]
Answer:
3x^4+4x^3-3x^2+14x
Step-by-step explanation:
(3x^2-2x+7)(x^2+2x)
= 3x^2(x^2+2x)-2x(x^2+2x)+7(x^2+2x)
= 3x^4+4x^3-3x^2+14x