Tìm x thuộc Z
tìm x thuộc Z
a) (15- x ) . ( 3x + 9 ) = 0
b) x . ( 2x - 8 ) = 0
c) (x - 4 ) ^2 = 25
e) ( x + 8 ) ^3 = 27
g) ( 3 - x ) ^3 = -8
a) (15- x ) . ( 3x + 9 ) = 0
b) x . ( 2x - 8 ) = 0
c) (x - 4 ) ^2 = 25
e) ( x + 8 ) ^3 = 27
g) ( 3 - x ) ^3 = -8