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Solve the Quadratic Inequality $x ^ { 2 } - 3 x - 28 \leq 0$

Question 326

Multiple Choice

Solve the quadratic inequality. Write the solution set in interval notation.
- $x ^ { 2 } - 3 x - 28 \leq 0$

A) $[ 7 , \infty )$
B) $( - \infty , - 4 ] \cup [ 7 , \infty )$
C) $( - \infty , - 4 ]$
D) $[ - 4,7 ]$

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