Question

Solve x^2=45 , where x is a real number.
Simplify your answer as much as possible.

If there is more than one solution, separate them with commas

Answer 1

\[x=\pm\sqrt{45}\]
\[x=\pm\sqrt{9\times 5}\]
\[x=\pm\sqrt{9}\sqrt{5}\]
\[x=\pm3\sqrt{5}\]

Answer 2

x²=45
x=sqrt45
x= + 3sqrt5
x= - 3qrt5

Answer 3

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thanks :-)