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what are the solutions of the equation 2x ^ 2 equals 18 use a group of related function whose group answers the question

Sagot :

The given expression is :

[tex]2x^2=18[/tex]

Simplify the equation for x :

[tex]2x^2=18[/tex]

Divide both side by 2 :

[tex]\begin{gathered} \frac{2x^2}{2}=\frac{18}{2} \\ x^2=9 \end{gathered}[/tex]

taking square root on both side :

[tex]\begin{gathered} x^2=9 \\ \sqrt[]{x^2}=\sqrt[]{9} \\ x=\pm3 \end{gathered}[/tex]

Answer :

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