Using the Quadratic Formula Part 2

I was having difficulty solving a quadratic equation in which one has two different values for x as the numerator. Here is the problem:

(0.100 + X)(X)/(0.100 - X) = 1.8 x 10^-5

Any input on the above question will be greatly appreciated. Thank you to the individual who answered my last question.

Isn't it .100018x instead of .10001x

I calculated .100018x instead of .10001x. Am I correct in adding 0.1 to 1x10^-5 instead of adding .1 to 1 x 10^-5 like you did? Thank you in advance for your replay and all your help.