phan tich da thuc thanh nhan tu (x-y).z^3 +(y-z).x^3 +(z-y).y^3
phan tich thanh nhan tu D=(x-y)^3+(y-z)^3+(z-x)^3
(x+y+z)^3 - (x+y-z)^3 - (y+z-x)^3 - (z+x-y)^3
Phan tich da thuc thanh nhan tu
phan tich thanh nhan tu
(x+y+z)3-x3-y3-z3
phan tich da thuc thanh nhan tu (xy+1)^2 -(x-y)^2 ai giup minh voi
Phan tich thanh nhan tu
x^3+y^3+z^3-3xyz
X^3+Y^3+Z^3-3xyz
phan tich da thuc thanh nhan tu
phan tich da thuc thanh nhan tu
x^3+y^3+z^3-3xyz
phan tich thanh nhan tu
a)xy-x-y
b)(x+y+z)^3-x^3-y^3-z^3