F(x)=x^2-12 and g(x)=2x+13 find (g-f)(5)

Hello from MrBillDoesMath!

10

Discussion:

(g-f)(5)  =

g(5) - f(5) =

(2(5)+13) - (5^2-12) =                                 => as 5^2 = 25

(10+13) - (25-12) =

23 - 13 =

10

Thank you,

MrB

y=sec x is the correct answer

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