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Let
p(x) = x - 2y
What is p(p(1,-1),p(-5,-2))?

 Aug 9, 2021
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p(1,-1) = 1 - (-2) = 1 + 2 = 3

p(-5, -2) = -5 - (-4) = -5 + 4 = -1

p(3, -1) = 3 - (-2) = 3 + 2 = \(\boxed{5}\)

 Aug 9, 2021

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