化简并求值(m-2)(m²+2m+4)-2m(m²-3),其中m=2
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![化简并求值(m-2)(m²+2m+4)-2m(m²-3),其中m=2](/uploads/image/z/671621-5-1.jpg?t=%E5%8C%96%E7%AE%80%E5%B9%B6%E6%B1%82%E5%80%BC%28m-2%29%28m%26%23178%3B%2B2m%2B4%29-2m%28m%26%23178%3B-3%29%2C%E5%85%B6%E4%B8%ADm%3D2)
化简并求值(m-2)(m²+2m+4)-2m(m²-3),其中m=2
化简并求值(m-2)(m²+2m+4)-2m(m²-3),其中m=2
化简并求值(m-2)(m²+2m+4)-2m(m²-3),其中m=2
(m-2)(m²+2m+4)-2m(m²-3)
=m³-8-2m³+6
=-m³-2
=-2³-2
=-10
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