Use the quadratic formula to
-$$\mathrm { p } ^ { 2 } + \mathrm { p } - 9 = 0$$
A) $\frac { - 1 \pm \sqrt { 37 } } { 2 }$
B) $- 1 \pm \sqrt { 37 }$
C) $\frac { 1 \pm \sqrt { 37 } } { 2 }$
D) $\frac { - 1 \pm i \sqrt { 35 } } { 2 }$

Question

Quizplus · Accepted Answer

The quadratic formula is $\frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$, where $a = 1$, $b = 1$, and $c = -9$. Substituting these values gives $\frac{-1 \pm \sqrt{1^2 - 4(1)(-9)}}{2(1)} = \frac{-1 \pm \sqrt{37}}{2}$.

Use the Quadratic Formula to - p2+p−9=0\mathrm { p } ^ { 2 } + \mathrm { p } - 9 = 0p2+p−9=0

Use the Quadratic Formula to
- $\mathrm { p } ^ { 2 } + \mathrm { p } - 9 = 0$