Given m = x - y, n = XY, try to use M, n to represent (X3 + Y3) 2 The square of (the third power of X + the third power of Y)

Given m = x - y, n = XY, try to use M, n to represent (X3 + Y3) 2 The square of (the third power of X + the third power of Y)

(x-y)²=x²+y²-2xy
x²+y²=M²+2N
x³+y³
=(x+y)(x²-xy+y²)
=M(M²+2N-N)
=M³+MN
So the original formula = (M & sup3; + Mn) & sup2;