Solve the quadratic equation below.3x^2-9=0

asked Jan 7, 2023 5.6k views

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5 votes

$\begin{gathered} 3x^2-9=0 \\ 3x^2-9+9=0+9 \\ 3x^2=9 \\ (3x^2)/(3)=(9)/(3) \\ x^2=3 \\ x=√(3),\: x=-√(3) \end{gathered}$

Birkensox answered Jan 12, 2023

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