把下列各式分解因式(解答过程)30m的5次幂n的4次幂-16m³n的5次幂+24m²n²x²(x-y)+y²(y-x)

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把下列各式分解因式(解答过程)
30m的5次幂n的4次幂-16m³n的5次幂+24m²n²
x²(x-y)+y²(y-x)

(1)原式=2m²n²(15m³n²-8mn³+12)
(2)原式=x²(x-y)-y²(x-y)
=(x²-y²)(x-y)²
=(x+y)(x-y)(x-y)(x-y)
=(x+y)(x-y)³