Question

x^2-2x/x^2-4除以2x/x+2+(x+2)化简

Answer 1

（x^2-2x）/（x^2-4）÷2x/(x+2）+(x+2)

=x(x-2)/[(x+2)(x-2)]×（x+2)/(2x)+x+2

=1/2+x+2

=x+5/2.