Simplify the rational expression. If the rational expression cannot be simplified, so state.
-$$\frac { 81 - x ^ { 2 } } { x ^ { 2 } - 13 x + 36 }$$
A) $- \frac { x + 9 } { x + 4 }$
B) $- \frac { x - 9 } { x - 4 }$
C) $- \frac { x + 9 } { x - 4 }$
D) $\frac { x + 9 } { x - 4 }$

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The Answer of Simplify the rational expression. If the rational expression cannot be simplified, so state.
-$$\frac { 81 - x ^ { 2 } } { x ^ { 2 } - 13 x + 36 }$$
A) $- \frac { x + 9 } { x + 4 }$
B) $- \frac { x - 9 } { x - 4 }$
C) $- \frac { x + 9 } { x - 4 }$
D) $\frac { x + 9 } { x - 4 }$

Simplify the Rational Expression 81−x2x2−13x+36\frac { 81 - x ^ { 2 } } { x ^ { 2 } - 13 x + 36 }x2−13x+3681−x2​

Simplify the Rational Expression $\frac { 81 - x ^ { 2 } } { x ^ { 2 } - 13 x + 36 }$