Question 980395
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*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \sqrt{x\ +\ 20}\ -\ 1\ =\ 1]


Add *[tex \Large 1] to both sides.  Square both sides.  Add *[tex \Large -20] to both sides.


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it

*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \