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What are the solutions to he quadratic equation 3x^2+15-18=0

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3 {x}^(2) + 15 - 18 = 0 \\ {3x}^(2) - 3 = 0 \\ {x}^(2) - 1 = 0 \\ {x}^(2) = 1
either x= +1
or x= -1
User KorbenDallas
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