已知x2-5x=6,则10x-2x2+5=______.
已知x2+4x+y2-2y+5=0,则x2+y2=______.
已知x2+4x-4=0,则3x2+12x-5=______.
若(x2-5x+6)2+|x2+3x-10|=0,则x=______.
已知x=2011,则|4x2-5x+9|-4|x2+2x+2|+3x+7=______.
已知3x2-x=1,求6x3+7x2-5x+2010的值______.
已知x1、x2为方程x2+5x+2=0的两实根,则x13+23x2+5=______.
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______.
已知x2-4y2=20,x+2y=5,则x=______,y=______.
已知x+y=-5,xy=6,则x2+y2=______.
如果x2-x+3=5,那么-4x+4x2-10=______.