Use a graphing utility to find or approximate solutions to the equation. If necessary, round your answers to three decimal
places.
-$$x ^ { 2 } + 6 x - 72 = 0$$
A) $- 12,6$
B) $- 12,1$
C) 12,6
D) $12 , - 6$

Question

Quizplus · Accepted Answer

The equation $x^2 + 6x - 72 = 0$ can be solved using the quadratic formula, $\frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$, where $a = 1$, $b = 6$, and $c = -72$. Solving gives the roots $x = -12$ and $x = 6$, which matches option A.

Use a Graphing Utility to Find or Approximate Solutions to the Equation