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Solve the Quadratic Inequality $x ^ { 2 } - 7 x + 12 \geq 0$

Question 57

Multiple Choice

Solve the quadratic inequality. Write the solution set in interval notation.
- $x ^ { 2 } - 7 x + 12 \geq 0$

A) $[ 3,4 ]$
B) $( - \infty , 3 ]$
C) $[ 4 , \infty )$
D) $( - \infty , 3 ] \cup [ 4 , \infty )$

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