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.

Printable View

- Aug 7th 2011, 03:44 PMbenny92000Finding 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. - Aug 7th 2011, 03:52 PMPlatoRe: Finding real solutions with absolute value
- Aug 7th 2011, 04:09 PMbenny92000Re: Finding real solutions with absolute value
Yes. I guess basic reason will take me from there.

- Aug 7th 2011, 07:50 PMProve ItRe: Finding real solutions with absolute value
Let so that your equation becomes .

Solve for and then use that solution to solve for .