Simplify.
-$\frac { ( x + 2 ) ^ { - 1 } + ( x - 2 ) ^ { - 1 } } { \left( x ^ { 2 } - 4 \right) ^ { - 1 } }$
A) 4
B) $x ^ { 2 }$
C) $2 x$
D) $- 4$

Name: Simplify. -$\frac { ( x + 2 ) ^ { - 1 } + ( x - 2 ) ^ { - 1 } } { \left( x ^ { 2 } - 4 \right) ^ { - 1 } }$ A) 4 B) $x ^ { 2 }$ C) $2 x$ D) $- 4$
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Question

Quizplus · Accepted Answer

The expression simplifies to $2x$ by finding a common denominator and simplifying within the numerator and denominator.

Simplify - (x+2)−1+(x−2)−1(x2−4)−1\frac { ( x + 2 ) ^ { - 1 } + ( x - 2 ) ^ { - 1 } } { \left( x ^ { 2 } - 4 \right) ^ { - 1 } }(x2−4)−1(x+2)−1+(x−2)−1​

Simplify
- $\frac { ( x + 2 ) ^ { - 1 } + ( x - 2 ) ^ { - 1 } } { \left( x ^ { 2 } - 4 \right) ^ { - 1 } }$