Question

pfvrr

a) 5x(x - 3)(x + 4) =

b) (a² - ab +b²) (a + b) =

​

Answer 1

Resposta:

a) 5x(x - 3)(x + 4) =

5x (x² + 4x - 3x - 12) =

5x (x² + x - 12)=

5x³ + 5x² - 60x

b) (a² - ab +b²) (a + b) =

a³ + a²b - a²b - ab² + ab²+ b³ =

(a³ + b³)

Answer 2

Resposta:

a)5x

3

+5x

2

−60x

b)a

3

+b

3