Question

( x2 + x + 1 ) ( -x2 + 3x )​

Answer 1

Respuesta:

- x4 +2x3 + 2x2 +3x

Explicación paso a paso:

( x2 + x + 1 ) ( -x2 + 3x )​ =

-x2( x2 + x + 1 ) + 3x( x2 + x + 1 ) =

- x4 - x3 - x2 + 3x3 + 3x2 +3x =

- x4 + 3x3 - x3 + 3x2 - x2 +3x =

- x4 + (3x3 - x3) + (3x2 - x2) +3x =

- x4 +2x3 + 2x2 +3x