# Math

Suppose a(x) = 3x - 7 and b(x) = 2 - x^3. Find a(b(3)) - b(a(3)).

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1. I will do one of the components, you do the other , then subtract them

a(x) = 3x - 7 and b(x) = 2 - x^3

a(b(3))
= a(2-3^3)
= a(-25)
= 3(25) - 7 = 68

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posted by Reiny

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