1.如果4X-3是多项式4X2+5X+a的一个因式,则a=?A.-6 B.6 C.-9 D.92.已知代数式3y2-2y+6的值为8,那么代数式3xy2-2xy-3/2y2-2x+y+2的值为?3.已知m2+2m+n2-6n+10=0,则m·n=?4.已知x+y-2=0,求(x2-y2)2-8(x2+y2)的值 )5.已知x,y为
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![1.如果4X-3是多项式4X2+5X+a的一个因式,则a=?A.-6 B.6 C.-9 D.92.已知代数式3y2-2y+6的值为8,那么代数式3xy2-2xy-3/2y2-2x+y+2的值为?3.已知m2+2m+n2-6n+10=0,则m·n=?4.已知x+y-2=0,求(x2-y2)2-8(x2+y2)的值 )5.已知x,y为](/uploads/image/z/1679416-16-6.jpg?t=1.%E5%A6%82%E6%9E%9C4X-3%E6%98%AF%E5%A4%9A%E9%A1%B9%E5%BC%8F4X2%2B5X%2Ba%E7%9A%84%E4%B8%80%E4%B8%AA%E5%9B%A0%E5%BC%8F%2C%E5%88%99a%3D%3FA.-6+B.6+C.-9+D.92.%E5%B7%B2%E7%9F%A5%E4%BB%A3%E6%95%B0%E5%BC%8F3y2-2y%2B6%E7%9A%84%E5%80%BC%E4%B8%BA8%2C%E9%82%A3%E4%B9%88%E4%BB%A3%E6%95%B0%E5%BC%8F3xy2-2xy-3%2F2y2-2x%2By%2B2%E7%9A%84%E5%80%BC%E4%B8%BA%3F3.%E5%B7%B2%E7%9F%A5m2%2B2m%2Bn2-6n%2B10%3D0%2C%E5%88%99m%C2%B7n%3D%3F4.%E5%B7%B2%E7%9F%A5x%2By-2%3D0%2C%E6%B1%82%EF%BC%88x2-y2%292-8%28x2%2By2%29%E7%9A%84%E5%80%BC+%EF%BC%895.%E5%B7%B2%E7%9F%A5x%2Cy%E4%B8%BA)
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