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-57
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-57
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\frac{7}{4-2}\times 2-\left(5-1\right)^{3}
Add 2 and 5 to get 7.
\frac{7}{2}\times 2-\left(5-1\right)^{3}
Subtract 2 from 4 to get 2.
7-\left(5-1\right)^{3}
Multiply \frac{7}{2} and 2 to get 7.
7-4^{3}
Subtract 1 from 5 to get 4.
7-64
Calculate 4 to the power of 3 and get 64.
-57
Subtract 64 from 7 to get -57.
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