kkbtr2002 kkbtr2002
  • 25-07-2020
  • Mathematics
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Solve 2x^2– 5= 3x with the quadratic formula

Solve 2x2 5 3x with the quadratic formula class=

Respuesta :

CSMedrano
CSMedrano CSMedrano
  • 25-07-2020

Answer:

see below

Step-by-step explanation:

2x^2-3x-5=0

Well a=2, b=-3, c=-5

[tex]x=\frac{-(-3)+-\sqrt{(-3)^2-4(2)(-5)} }{2*2}\\\\ x_1=\frac{3+\sqrt{49} }{4} =\frac{3+7}{4} =\frac{10}{4} =\frac{5}{4} \\\\x_2=\frac{3-\sqrt{49} }{4} =\frac{3-7}{4}=\frac{-4}{4} =-1[/tex]

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