Solve the Equation by Using the Quadratic Formula $u ^ { 2 } - 10 u + 18 = 0$

Multiple Choice

Solve the equation by using the Quadratic Formula. $u ^ { 2 } - 10 u + 18 = 0$

A) $u = 10 \pm$ $\sqrt { 7 }$
B) $u = 10 \pm$ $\sqrt { 43 }$
C) $u = 5 \pm$ $\sqrt { 7 }$
D) $u = - 10 \pm$ $\sqrt { 43 }$
E) $u = - 5 \pm$ $\sqrt { 7 }$