Solve the inequality.
-$x ^ { 2 } + 7 x \leq - 3 x - 21$
A) $3 \leq x \leq 7$
B) $- 3 \leq x \leq - 7$
C) $x \leq - \frac { 1 } { 2 } \text { or } x \geq \frac { 3 } { 4 }$
D) $x \leq - 3 \text { or } x \geq - 7$

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The Answer of Solve the inequality.
-$x ^ { 2 } + 7 x \leq - 3 x - 21$
A) $3 \leq x \leq 7$
B) $- 3 \leq x \leq - 7$
C) $x \leq - \frac { 1 } { 2 } \text { or } x \geq \frac { 3 } { 4 }$
D) $x \leq - 3 \text { or } x \geq - 7$

Solve the Inequality x2+7x≤−3x−21x ^ { 2 } + 7 x \leq - 3 x - 21x2+7x≤−3x−21

Solve the Inequality $x ^ { 2 } + 7 x \leq - 3 x - 21$