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If 2x²+6x-4=0, how do you factor it and what is x?

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Panoyin
          2x² + 6x - 4 = 0
2(x²) + 2(3x) - 2(2) = 0
        2(x² + 3x - 2) = 0
                 2              2
           x² + 3x - 2 = 0
                          x = -(3) +/- √((3)² - 4(1)(-2))
                                                2(1)
                          x = -3 +/- √(9 + 8)
                                           2
                          x = -3 +/- √(17)
                                         2
                          x = -1.5 + 0.5√(17)
                          x = -1.5 + 0.5√(17)    U    x = -1.5 - 0.5√(17)
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