Solve: $$\sqrt{x} - 3 = 5$$

Flashcard 15 - Mathematics Flashcard Set for the HiSET Test

\[x=64\]

Isolate the radical by adding $3$ to both sides. Then square both sides of the equation.

$\sqrt{x} - 3 = 5$
$\sqrt{x} = 8$
$x = 8^2$
$x = 64$

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