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.
Follow Math Help Forum on Facebook and Google+
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 .
View Tag Cloud