Evaluate
171Cn
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171Cn
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C\times \frac{8+30}{2}\times 9n
Multiply 4 and 2 to get 8.
C\times \frac{38}{2}\times 9n
Add 8 and 30 to get 38.
C\times 19\times 9n
Divide 38 by 2 to get 19.
C\times 171n
Multiply 19 and 9 to get 171.
C\times \frac{8+30}{2}\times 9n
Multiply 4 and 2 to get 8.
C\times \frac{38}{2}\times 9n
Add 8 and 30 to get 38.
C\times 19\times 9n
Divide 38 by 2 to get 19.
C\times 171n
Multiply 19 and 9 to get 171.
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