If \(F\left(x+\dfrac1{x}\right)=x^2+\dfrac1{x^2},\) what is the value of \(F(4)+F(5).\)

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by Vincen » Thu Dec 16, 2021 11:41 am

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If \(F\left(x+\dfrac1{x}\right)=x^2+\dfrac1{x^2},\) what is the value of \(F(4)+F(5).\)

A. 9
B. 16
C. 25
D. 37
E. 41

Answer: D

Source: e-GMAT

Source: Beat The GMAT — Problem Solving | Thu Dec 16, 2021 11:41 am

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