Question

Fatore as expressões:
a) 8x³ - y³
b) ac + 2bc - ad - 2bd

Answer 1

a) (2x)³-y³

b)c(a+2b)-d(a+2b)
(a+2b).(c-d)

Answer 2

Oie, Td Bom?!

a)

$8x {}^{3} - y {}^{3} \\ 2 {}^{2} x {}^{3} - y {}^{3} \\ (2x) {}^{3} - y {}^{3} \\ (2x - y) \: . \: ((2x) {}^{2} + 2xy + y {}^{2} ) \\ (2x - y) \: . \: (4x {}^{2} + 2xy + y {}^{2} )$

b)

$ac + 2bc - ad - 2bd \\ c \: . \: (a + 2b) - d \: . \: (a + 2b) \\ (a + 2b) \: . \: (c - d)$

Att. Makaveli1996