Respuesta :

Answer:

[tex]x = \frac{-1 \pm \sqrt{33}}{4}[/tex]

Step-by-step explanation:

Hello!

We can solve the quadratic by using the Quadratic Formula.

Standard form of a Quadratic: [tex]ax^2 + bx +c = 0[/tex]

Quadratic Formula: [tex]x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}[/tex]

Given our equation: [tex]2x^2 + x - 4 = 0[/tex]

  • a = 2
  • b = 1
  • c = -4

Plug in the values into the quadratic formula to solve.

Solve the quadratic

  • [tex]x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}[/tex]
  • [tex]x = \frac{-1 \pm \sqrt{1^2 - 4(2)(-4)}}{2(2)}[/tex]
  • [tex]x = \frac{-1 \pm \sqrt{1 + 32}}{4}[/tex]
  • [tex]x = \frac{-1 \pm \sqrt{33}}{4}[/tex]

The solution to the quadratic is [tex]x = \frac{-1 \pm \sqrt{33}}{4}[/tex].