数学因式分解太难了,大家帮个忙.

3(x-1)^3y-(1-x)^3z
=3(x-1)^3y+(x-1)^3z
=(x-1)^3(3y+z)

不会!~

详细的化简过程，这样的方程式化简是对你日后理解曲线是很有意义的

3^3y(x-1)^3-z(1-x)^3
=9y(x-1)^3+z(x-1)^3
=(9y+z)(x-1)^3
=(9y+z)(x^3-2x^2-x-1)
=9yx^3-18yx^2-9xy-9y+zx^3-2zx^2-2zx-z
=(9y+z)x^3-2(9y+z)x^2-9xy-2zx-9y-z