Evaluate
202
Factor
2\times 101
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10302.25-100.5^{2}
Calculate 101.5 to the power of 2 and get 10302.25.
10302.25-10100.25
Calculate 100.5 to the power of 2 and get 10100.25.
202
Subtract 10100.25 from 10302.25 to get 202.
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