Solve this quadratic equation and explains the steps to help you solve it . Also which two specific methods help you to solve it: Is it quadratic formula, Factoring, Square Root Property or Completing square. And explains.

Solve this quadratic equation and explains the steps to help you solve it Also which two specific methods help you to solve it Is it quadratic formula Factoring class=

Respuesta :

Recall that the quadratic formula states that, the solutions to the quadratic equation

[tex]ax^2+bx+c=0[/tex]

are

[tex]\frac{-b\pm\sqrt{(-b)^2-4ac}}{2a}.[/tex]

Now, in the given equation, a=-1 ,b=-6, and c= 8. Therefore, the solutions to the equation are:

[tex]x=\frac{6\pm\sqrt{36+32}}{-2}.[/tex]

Simplifying the above result, we get:

[tex]x=-3\pm(-1)\sqrt{17}.[/tex]

Answer:

[tex]\begin{gathered} x_1=-3+\sqrt{17,} \\ x_2=-3-\sqrt{17}. \end{gathered}[/tex]