Thread: Finding real solutions with absolute value

Here is the equation: |x|^2 + 2|x| -3=0

The answer is + or - one. I solved it normally disregarding the abs. value and I got 1 and -3.

Originally Posted by benny92000

Here is the equation: |x|^2 + 2|x| -3=0
The answer is .

Do yo understand it is the same as

Yes. I guess basic reason will take me from there.

Let so that your equation becomes .

Solve for and then use that solution to solve for .