若3x2-x=1,则6x3+7x2-5x+2008=______.
若3x2-x=1,则6x3+7x2-5x+2008=______.
已知3x2-x=1,求6x3+7x2-5x+2010的值______.
x2-x-1=0,则2x3+7x2-11x+2012=______.
若x2+3x-2=0,则x3+5x2+4x+18=______.
若x2+3x-2=0,则2x3+6x2-4x的值为______.
若x2+x-2=0,则x3+2x2-x+2007=______.
如果x2+3x-3=0,则代数式x3+5x2+3x-10的值为______.
已知x2+x-1=0,则x3+2x2+2004=______.
已知x2+x-1=0,则x3+2x2+2011=______.
已知x2-x-1=0,则-x3+2x2+2005的值为______.
若3x3-x=1,则9x4+12x3-3x2-7x+2004的值等于______.
证明:(x3+5x2+4x-1)-(-x2-3x+2x3-3)+(8-7x-6x2+x3)的值与x无关.