Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$\frac{ (x-2)+(x+2) }{ (x+2)(x-2) }$$

Answer

(2*x)/((x+2)*(x-2))

Solution


Remove parentheses.
\[\frac{x-2+x+2}{(x+2)(x-2)}\]
Collect like terms.
\[\frac{(x+x)+(-2+2)}{(x+2)(x-2)}\]
Simplify  \((x+x)+(-2+2)\)  to  \(2x\).
\[\frac{2x}{(x+2)(x-2)}\]
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