去括号:6x3-[3x2-(x-1)]=______.
去括号:6x3-[3x2-(x-1)]=______.
若3x2-x=1,则6x3+7x2-5x+2008=______.
已知3x2-x=1,求6x3+7x2-5x+2010的值______.
化简并求值:3x3-[x3+(6x2-7x)]-2(x3-3x2-4x)其中x=-1.
多项式2x4-(a+1)x3+(b-2)x2-3x-1,不含x3项和x2项,则ab=______.
证明:(x3+5x2+4x-1)-(-x2-3x+2x3-3)+(8-7x-6x2+x3)的值与x无关.
已知1+x+x2+x3+x4=0,求1+x+x2+x3+…+x2009的值.______.
已知(-2x2)(3x2-ax-6)-3x3+x2中不含x的三次项,则a=______.
若x2+3x-2=0,则2x3+6x2-4x的值为______.
x2-x-1=0,则2x3+7x2-11x+2012=______.
分解因式:x4+2x3+3x2+2x+1=______.
若x3+(m+1)x2+x+2没有二次项,则m=______.