Example

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

Question

$$\frac { A _ { n } ^ { 3 } + 4 } { A _ { n } ^ { 4 } + 4 }$$

Evaluate

$\frac{A_{n}^{3}+4}{A_{n}^{4}+4}$

Expand

$\frac{A_{n}^{3}+4}{A_{n}^{4}+4}$

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