Evaluate
18
Factor
2\times 3^{2}
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14+7-\left(10-9\right)-2
Add 5 and 9 to get 14.
21-\left(10-9\right)-2
Add 14 and 7 to get 21.
21-1-2
Subtract 9 from 10 to get 1.
20-2
Subtract 1 from 21 to get 20.
18
Subtract 2 from 20 to get 18.
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Limits
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