.
Remember that .
So that means .
Hi, I've run into another problem on my algebra refresher. I must be doing something wrong here but I just can't see it.
Need to solve for X, of course I know the answer should be 1 but I can't seem to arrive at it.
My steps:
1: Put the lone x onto the right side.
2:Square both sides (to get rid of the square root on left side).
3: Rearrange.
4: At this point I could try putting this into the quadratic formula but it has a negative square root.
A mistake I may have made is in step 2, was I wrong to make the on the right hand side a positive? But even if it is left as a negative my answer comes out as...
Which I can make into (x-3)(x+2) I think, which would make x = 3, -2 but neither of those are the right answer of 1.
Am I doing this problem very wrong? Thanks in advance.