courtneyblasian17
courtneyblasian17 courtneyblasian17
  • 08-07-2020
  • Mathematics
contestada

For the equation y = 2x2 - 5x + 18, choose the correct
application of the quadratic formula.

For the equation y 2x2 5x 18 choose the correct application of the quadratic formula class=

Respuesta :

eudora eudora
  • 13-07-2020

Answer:

Option (2)

Step-by-step explanation:

For a quadratic equation,

ax² + bx + c = 0

roots of this equation can be determined by using quadratic formula,

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

Comparing this quadratic equation with the given equation,

y = 2x² - 5x + 18 = 0

a = 2

b = (-5)

c = 18

By substituting these values in the given formula,

x = [tex]\frac{5\pm\sqrt{(-5)^2-4(2)(18)} }{2(2)}[/tex]

Therefore, Option (2) will be the answer.

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