x=根号3-2,x-2分之x+2-x²-4分之16-x+2分之1

问题描述:

x=根号3-2,x-2分之x+2-x²-4分之16-x+2分之1

x=根号3-2,x-2分之x+2-x²-4分之16-x+2分之1=(x+2)/(x-2)-16/(x²-4)-1/(x+2)=((x²+4x+4-16-x+2)/(x-2)(x+2)=(x²+3x-10)/(x-2)(x+2)=(x+5)(x-2)/(x-2)(x+2)=(x+5)/(x+2)=(√3-2+5)/(√3-2+2)=...