已知函数f(x)=ax3+bx2+cx在点x0处取得极大值5,其导函数y=f‘(x)的图象经过点(1,0),(2,0),如图所示 求(1)x0的值 (2)a.b.c的值 (3)若g(x)=f(x)-m有3个零点,求m的取值范围
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![已知函数f(x)=ax3+bx2+cx在点x0处取得极大值5,其导函数y=f‘(x)的图象经过点(1,0),(2,0),如图所示 求(1)x0的值 (2)a.b.c的值 (3)若g(x)=f(x)-m有3个零点,求m的取值范围](/uploads/image/z/4495622-14-2.jpg?t=%E5%B7%B2%E7%9F%A5%E5%87%BD%E6%95%B0f%28x%29%3Dax3%2Bbx2%2Bcx%E5%9C%A8%E7%82%B9x0%E5%A4%84%E5%8F%96%E5%BE%97%E6%9E%81%E5%A4%A7%E5%80%BC5%2C%E5%85%B6%E5%AF%BC%E5%87%BD%E6%95%B0y%3Df%E2%80%98%28x%29%E7%9A%84%E5%9B%BE%E8%B1%A1%E7%BB%8F%E8%BF%87%E7%82%B9%281%2C0%29%2C%282%2C0%29%2C%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA+%E6%B1%82%281%29x0%E7%9A%84%E5%80%BC+%282%29a.b.c%E7%9A%84%E5%80%BC+%283%29%E8%8B%A5g%28x%29%3Df%28x%29-m%E6%9C%893%E4%B8%AA%E9%9B%B6%E7%82%B9%2C%E6%B1%82m%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4)
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