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Question: Why is Maple incorrectly simplifying my expression? Maybe I have a syntax error, but I can't find it.

I have the following expression.

Ps = (x - 600)(15000 + 400*(y - 4000)/2000 + 15000*0.40*(850 - x)/100) - y

Maple will evaluate this to:

Ps = (x - 600)(15000 + 400*(y - 4000)/2000 + 15000*0.40*(850 - x)/100) - y

Screenshot:

Plotting these two in 2D on Desmos to demonstrate: https://www.desmos.com/calculator/tvp4rbzxzp

These two are not the same expression. Is Maple broken or am I doing something wrong?

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