(4-8x)/(x^2-4)=2 + (2x-1)/(2-x)4-8x=2x²-8-(2x-1)(x+2)4-8x=2x²-8-2x²-3x+25x=10;x=2;
(4-8x)/(x^2-4)=(2x-1)/(2-x)+1解 :4(1-2x)/((x-2)(x+2))=(1-2x)/(x-2) -1/(x-2)4(1-2x)=-2x(x+2) (方程两边同乘(x-2) ,所以 X不等于2)x=(2+-2genhao3)/2=1+-√3