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what are the solutions to the equation 2x^2=18

the possible answers are A. 2 solutions +/-9 B. 2 solutions +/-3 C. 2 solutions +/-√3 D. No solutions.
i am completely and utterly lost so if someone could help me just like figure out what to do with the equation itd be great

1 answer

2 x² = 18

x² = 18 / 2

x² = 9

x = ± √9

x = ± 3

The solutions are:

x = - 3 and x = 3
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