Question

(x - 2).(x2 3x - 2)
?​

Answer 1

Oie, Td Bom?!

• Se For:

$= (x - 2) \: . \: ( x{}^{2} + 3x - 2)$

$= x \: . \: (x {}^{2} + 3x - 2) - 2(x {}^{2} + 3x - 2)$

$= x {}^{3} + 3x {}^{2} - 2x - 2x {}^{2} - 6x + 4$

$= x {}^{3} + x {}^{2} - 8x + 4$

• Ou se for:

$= (x - 2) \: . \: (x {}^{2} - 3x - 2)$

$= x \: . \: (x {}^{2} - 3x - 2) - 2(x {}^{2} - 3x - 2)$

$= x {}^{3} - 3x {}^{2} - 2x - 2x {}^{2} + 6x + 4$

$= x {}^{3} - 5x {}^{2} + 4x + 4$

Att. Makaveli1996