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

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

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