Respuesta :

The answer should be 14.

You just have to substitute x with the given number and finish the equation.

Answer:

[tex](f-g)(2)=28[/tex]

Step-by-step explanation:

Given:

[tex]f(x)=3x^2+1[/tex]

[tex]g(x)= 1-x[/tex]

To find the equivalent expression of  [tex](f-g)(2)[/tex].

[tex](f-g)(2) = f(2) - g(2)[/tex]

Find g(x)

[tex]g(x)=1-x[/tex]

Sub x for 2

[tex]g(2)=1-2[/tex]

[tex]g(2)=-1[/tex]

Find f(x)

[tex]f(x)=3x^2+1[/tex]

Sub x for 2

[tex]f(2)=3(2)^2+1[/tex]

[tex]f(2)=12+1[/tex]

[tex]f(2)=12+1[/tex]

[tex]f(2)=13[/tex]

Solve for the giving value

[tex](f-g)(2)[/tex]

[tex](13- (-1)) (2)[/tex]

[tex]14(2)[/tex]

28