The square root of x + 3 equals 12

Nabulke asked Jul 24, 2023

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8 votes

Nabulke asked Jul 24, 2023

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29 votes

We are given

$\sqrt[\square]{x+3}\text{ = 12}$

Square both sides of the equation

$\begin{gathered} (\sqrt[\square]{x+3})^2=12^2 \\ x+3\text{ = 144} \end{gathered}$

subtract 3 from both sides

$\begin{gathered} x+3-3\text{ = 144-3} \\ x\text{ = 141} \end{gathered}$

Hence the value of x is 141

Nam Pham answered Jul 28, 2023

3.2k points

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