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Given that f(x) = x^{2}-2x+5 and g(x) =x-18, what is the value of f(g(5)) -g(f(5))?

 Jun 22, 2021
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f(5) = 5^2 -2(5)+5 = 20

g(5) = -13 

 

g(f(5)) = g(20) = 2       f(g(5)) = -13^2 -2(-13)+5 = 200

 

200-2 = 198

 Jun 22, 2021

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