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please please help me with this problem
Given the functions f(x)=x2 and g(x)= sqrt x, evaluate the following:

(f+g)(14) =

(f+g)(18) =

(f+g)(−16) =


Sagot :

Answer:

See below for answers

Step-by-step explanation:

If [tex]f(x)=x^{2}[/tex] and [tex]g(x)=\sqrt{x}[/tex], then:

[tex](f+g)(14)=f(14)+g(14)=14^{2} +\sqrt{14} =196+\sqrt{14}[/tex]

[tex](f+g)(18)=f(18)+g(18)=18^{2} +\sqrt{18} =324+3\sqrt{2}[/tex][tex](f+g)(-16)=f(-16)+g(-16)=(-16)^{2} +\sqrt{-16} =256±4i[/tex]