已知抛物线y=2x平方-3x+m(m为常数)与x轴交于A.B两点,且线段AB的长为1/21.求m的值1.求m值 2.若该抛物线的顶点为P,求△APB的面积
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![已知抛物线y=2x平方-3x+m(m为常数)与x轴交于A.B两点,且线段AB的长为1/21.求m的值1.求m值 2.若该抛物线的顶点为P,求△APB的面积](/uploads/image/z/5301986-50-6.jpg?t=%E5%B7%B2%E7%9F%A5%E6%8A%9B%E7%89%A9%E7%BA%BFy%3D2x%E5%B9%B3%E6%96%B9-3x%2Bm%28m%E4%B8%BA%E5%B8%B8%E6%95%B0%29%E4%B8%8Ex%E8%BD%B4%E4%BA%A4%E4%BA%8EA.B%E4%B8%A4%E7%82%B9%2C%E4%B8%94%E7%BA%BF%E6%AE%B5AB%E7%9A%84%E9%95%BF%E4%B8%BA1%2F21.%E6%B1%82m%E7%9A%84%E5%80%BC1.%E6%B1%82m%E5%80%BC+2.%E8%8B%A5%E8%AF%A5%E6%8A%9B%E7%89%A9%E7%BA%BF%E7%9A%84%E9%A1%B6%E7%82%B9%E4%B8%BAP%2C%E6%B1%82%E2%96%B3APB%E7%9A%84%E9%9D%A2%E7%A7%AF)
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