# How to solve for #x# , #(3.6*10^(-4)) = ((x*x)/(0.010 - x))# ?

##### 3 Answers

See below.

#### Explanation:

or

so

and then two solutions:

I get

#### Explanation:

I show you my derivation to help you see if 1) your procedure was correct but you typed in wrong numbers on your calculator, or 2) your approach contained an error. To make a calculation error-free clarity of visual presentation is essential. Know that a large number of mistakes occur in the last step because your brain relaxes when it shouldn't.

Given equation is

Multiplying both sides with

Rearranging as a quadratic

Discriminant

The two roots are

For the given equation we have

We get two solutions as

The second one matches with the given answer.