分解因式-4m³+16m²-6m-4m³+16m²-6m(x²-4x)²+8(x²-4x)+16
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分解因式-4m³+16m²-6m-4m³+16m²-6m(x²-4x)²+8(x²-4x)+16
分解因式-4m³+16m²-6m
-4m³+16m²-6m
(x²-4x)²+8(x²-4x)+16
分解因式-4m³+16m²-6m-4m³+16m²-6m(x²-4x)²+8(x²-4x)+16
-4m³+16m²-6m
=-2m(2m²-8m+3)
(x²-4x)²+8(x²-4x)+16
=(x²-4x+4)²
=(x-2)的4次方