Example

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

Question

$$7^{(n+1)}+(n^{2}+-1)}; 7^{(n^{2}-n)}+(2n+2)}$$

Answer

$$7^(n+1)+n^2-1;7^(n^2-n)+2*n+2$$

Solution


Simplify  \({n}^{2}+-1\)  to  \({n}^{2}-1\).
\[\begin{aligned}&{7}^{n+1}+{n}^{2}-1\\&{7}^{{n}^{2}-n}+2n+2\end{aligned}\]
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