Example

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

Question

$$\frac{ 7-x }{ { x }^{ 2 } +1 }$$

Evaluate

$\frac{7-x}{x^{2}+1}$

Expand

$\frac{7-x}{x^{2}+1}$

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