(x的2次方+4x+4)除以(x的2次方-16)除以(2x-8)分之(x+2)-2x除以x+4分式化简=(x+2)²/(x+4)(x-4)÷(x+2)/2(x-4)÷(x+4)=(x+2)²/(x+4)(x-4)×2(x-4)/(x+2)×1/(x+4)=2(x+2)/(x+4)²很高兴为您解答,skyhunt...