x2-x-1=0,则2x3+7x2-11x+2012=______.
x2-x-1=0,则2x3+7x2-11x+2012=______.
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x2+x-2=0,则x3+2x2-x+2007=______.
已知x2+x-1=0,则x3-2x+4的值为______.
已知x2+x-1=0,则代数式x3+2x2+2008的值为______.
已知1+x+x2+x3+x4=0,求1+x+x2+x3+…+x2009的值.______.
若3x2-x=1,则6x3+7x2-5x+2008=______.
若x2+3x-2=0,则x3+5x2+4x+18=______.
若x2+3x-2=0,则2x3+6x2-4x的值为______.
x2+x=1求x3+2x2-7