Jo5hnsonashjameety
Jo5hnsonashjameety Jo5hnsonashjameety
  • 23-06-2016
  • Mathematics
contestada

Solve 3x2 + 4x = 2 with the quadratic equation!. I got -2-+ sqr of 40/3 but I don't see it in the answer choices. help?

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Аноним Аноним
  • 05-07-2016
The quadratic equation is described as:
[tex] x=\frac{-b+- \sqrt{ b^{2}-4ac } }{2a} [/tex]
 
where a is the coefficient of x2, b is the coefficient of x and c is the constant.

Substituting and solving for x would result to:
[tex] x=\frac{-4+- \sqrt{ 4^{2}-4*3*-2 } }{2*3} [/tex]
[tex] x1=\frac{-4+ 2\sqrt{10} }{6}[/tex]
[tex] x2=\frac{-4- 2\sqrt{10} }{6} [/tex]


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