Solve the Inequality $x ^ { 2 } - 6 x \geq - 8$

Multiple Choice

Solve the inequality. Write the solution set in interval notation.
- $x ^ { 2 } - 6 x \geq - 8$

A) $( - \infty , 2 ] \cup [ 4 , \infty )$
B) $( - \infty , 2 ]$
C) $[ 4 , \infty )$
D) $[ 2,4 ]$