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(2x)^5 + 5[(2x)^4] + 10[(2x)^3] + 10[(2x)^2] + 5[(2x)^1] + 1
(2x)^5 + 5[(2x)^4] + 10[(2x)^3] + 10[(2x)^2] + 5[(2x)^1] + 1
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