Example

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

Question

$$\{ \begin{array} { l } { x ^ { 2 } - 16 \gt 0 , } \\ { x ^ { 2 } + 1 \lt 0 , } \end{array}$$

Answer

22

Solution


Calculate.
\[22\]
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