Given the equation 2 square root x minus 5 equals 2, solve for x and identify if it is an extraneous solution.

asked Jul 23, 2019 141k views

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$\text{The domain}\\x-5\geq0\to x\geq5\\D:x\geq5\\\\2√(x-5)=2\ \ \ |:2\\√(x-5)=1\ \ \ |\text{square both sides}\\x-5=1^2\ \ \ \ |+5\\x=6\in D$

JustHooman answered Jul 28, 2019

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