Question

(x - 1) × (x² + 2x - 6) =

​

Answer 1

(x−1).(x

2

+2x−6)

multiplique cada termo do 1º parênteses com cada termo do 2º parênteses

x.x^{2}+x.2x+x.(-6)+(-1).x^{2}+(-1).2x+(-1).(-6)x.x

2

+x.2x+x.(−6)+(−1).x

2

+(−1).2x+(−1).(−6)

x^{1+2}+2.x^{1+1}-6x-x^{2}-2x+6x

1+2

+2.x

1+1

−6x−x

2

−2x+6

x^{3}+2x^{2}-6x-x^{2}-2x+6x

3

+2x

2

−6x−x

2

−2x+6

x^{3}+2x^{2}-x^{2}-6x-2x+6x

3

+2x

2

−x

2

−6x−2x+6

x^{3}+(2-1)x^{2}+(-6-2)x+6x

3

+(2−1)x

2

+(−6−2)x+6

x^{3}+x^{2}-8x+6x

3

+x

2

−8x+6

espero ter ajudado