分解因式-x³y+2x²y-xy (a-b)²+12(a-b)+36 (m²+3m)²+8(m²+3m)+16

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分解因式-x³y+2x²y-xy (a-b)²+12(a-b)+36 (m²+3m)²+8(m²+3m)+16

-x³y+2x²y-xy
=-xy(x²-2x+1)
=-xy(x-1)²
(a-b)²+12(a-b)+36
=(a-b+6)²
(m²+3m)²+8(m²+3m)+16
=(m²+3m+4)²

-x³y+2x²y-xy
=-xy(x²-2x+1)
=-xy(x-1)²
(a-b)²+12(a-b)+36
=(a-b+6)²
(m²+3m)²+8(m²+3m)+16
=(m²+3m+4)²