x的三次方加（或减）y的三次方等于?

网友回答

x^3+y^3=(x+y)(x^2-xy+y^2)
x^3-y^3=(x-y)(x^2+xy+y^2)
======以下答案可供参考======
供参考答案1:
x^3+y^3
=[x+y][x^2+y^2-xy]
=[x+y][(x+y)^2-3xy]