How do you solve $sqrt x - 1 = 2$ ?

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Answer 1 · 2016-12-24T14:25:43

$x=9$

$sqrt(x)-1=2$

or, $sqrt(x)-1+1=2+1rarr$ Adding 1 on both sides.

or, $sqrt(x)=3$

or, $sqrt(x)^2=3^2rarr$ Squaring both sides.

or, $x=9$

How do you solve sqrt x - 1 = 2sqrt x - 1 = 2?