Use the quadratic formula to solve 3x2 + 5x + 2 = 0.

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02-03-2017
Mathematics

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Use the quadratic formula to solve 3x2 + 5x + 2 = 0.

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wolf1728 wolf1728 · Answer 1 · 2017-03-02T19:38:11+01:00

wolf1728 wolf1728

02-03-2017

a=3 b=5 c=2
x = -b +-sq root(b^2 -4*a*c) / 2a
x = [-5 +-sq root(5^2 -4*3*2)] / 6
x = [-5 +-sq root(25 -24)]/6
x = [-5 +- 1] /6
x1 = -1
x2 = -4/6 = -2/3 = -.66666666666666

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