Question 305734
1/ 4+x +1/ 2-x = 3/4

2-x +4+x / (4+x)(2-x) =3/4

6 / (4+x)(2-x)= 3/4

24 = 3(4+x)(2-x)

24= 3(8-2x-x^2)
.
8= 8-2x-x^2

x^2+2x=0
x(x+2)=0

x=0 Or x=-2