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

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asked Nov 16, 2016 102k views

1 Answer

Jocki · Answer 1 · 2016-11-23T00:52:43+0000

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)

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

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