Precalculus Examples

$\sqrt{x} + 2 = 2$

Move all terms not containing $\sqrt{x}$ to the right side of the equation.

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Subtract $2$ from both sides of the equation.

$\sqrt{x} = 2 - 2$

Subtract $2$ from $2$ .

$\sqrt{x} = 0$

To remove the radical on the left side of the equation, square both sides of the equation.

${(\sqrt{x})}^{2} = {(0)}^{2}$

Simplify the left side of the equation.

$x = {(0)}^{2}$

Raising $0$ to any positive power yields $0$ .

$x = 0$

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