Question 652614
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I presume you mean:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ x\ -\ 5\sqrt{x\ +\ 4} =\ 0]


Add *[tex \LARGE 5\sqrt{x\ -\ 4}] to both sides:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ x\ =\ 5\sqrt{x\ +\ 4}]


Square both sides:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ x^2\ =\ 25(x\ +\ 4)]


Distribute, put the equation in standard form, and then use the quadratic formula to solve.  Make sure you check for extraneous roots that may have been introduced during the squaring process.


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