(分解因式)-8m³+2mn²#公式法#分解因式:-8m³+2mn²
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![(分解因式)-8m³+2mn²#公式法#分解因式:-8m³+2mn²](/uploads/image/z/6801235-43-5.jpg?t=%EF%BC%88%E5%88%86%E8%A7%A3%E5%9B%A0%E5%BC%8F%EF%BC%89-8m%26%23179%3B%2B2mn%26%23178%3B%23%E5%85%AC%E5%BC%8F%E6%B3%95%23%E5%88%86%E8%A7%A3%E5%9B%A0%E5%BC%8F%EF%BC%9A-8m%26%23179%3B%2B2mn%26%23178%3B)
(分解因式)-8m³+2mn²#公式法#分解因式:-8m³+2mn²
(分解因式)-8m³+2mn²
#公式法#
分解因式:-8m³+2mn²
(分解因式)-8m³+2mn²#公式法#分解因式:-8m³+2mn²
=2mn²-8m³
=2m(n²-4m²)
=2m(n+2m)(n-2m)
解
-8m³+2mn²
=-2m(4m²-n²)
=-2m(2m-n)(2m+n)
2m(n+2m)(n-2m
)
原式=2mn^2-8m^3
=2m(n^2-4m^2)
=2m(n-2m)(n+2m)
-8m³+2mn²
=2m(n²-4m²)
=2m(n+2m)(n-2m)