Question: integrating "5-(5-x)^2" different in Maxima and Maple

Hello, In Maxima integrate(5-(5-x)^2, x) gives... -x^3/3 + 5*x^2 - 20*x However, in Maple 11 int(5-(5-x)^2,x); gives 5*x + (1/3)*(5-x)^3 They're different by 125/3. Why is this? Ty
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