Làm phép tính chia
Làm phép tính chia :
a, [ 16 ( x+y )^5 - 12 ( x+y )^5 ] : 4 ( x+y )^2
b, [ 2 ( x-y+2z )^4 + 3 ( y-x-2z )^2 ] : 1/2 ( x-y+2z )^2
a, [ 16 ( x+y )^5 - 12 ( x+y )^5 ] : 4 ( x+y )^2
b, [ 2 ( x-y+2z )^4 + 3 ( y-x-2z )^2 ] : 1/2 ( x-y+2z )^2