viper94
viper94 viper94
  • 03-04-2020
  • Mathematics
contestada

Solve for x in the following:
8x^2 + 6x = -5

Respuesta :

johnsong14306
johnsong14306 johnsong14306
  • 03-04-2020

Answer:

No solution or

(-3±[tex]2i\sqrt{31}[/tex])/8

Step-by-step explanation:

To get the solution, move everything to the left side of the equation:

8x²+6x+5 = 0

If you try to factor the equation or graph it, you will see that it will never equal 0.

If you need an imaginary solution you can plug it into the quadratic equation:

-6±[tex]\sqrt{36-160}[/tex] over 16

Simplify and you get

-6±[tex]i\sqrt{124}[/tex] over 16

-6±[tex]4i\sqrt{31}[/tex] over 16

Simplify the fraction and you can get

(-3±[tex]2i\sqrt{31}[/tex])/8

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