A) (X - 8 )( X3 + 8) = 0 B) (4X - 3) – ( X + 5) = 3(10 - X)

Bài 3 (2đ): Tìm x biết:

a) (x - 8 )( x

3

+ 8) = 0

b) (4x - 3) – ( x + 5) = 3(10 - x)