Determine the Most Efficient Method to Use When Solving a Quadratic

Multiple Choice

Determine the Most Efficient Method to Use When Solving a Quadratic Equation
Solve the equation by the method of your choice.
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A) $x$ -intercepts: $\frac { 5 \pm \sqrt { 21 } } { 2 }$

B) $x$ -intercepts: $- 1$ and 5

C) x-intercepts: none

D) x-intercepts: $\frac { - 5 \pm \sqrt { 21 } } { 2 }$