Respuesta :

Answer:

I will just show you how to substitute.

Step-by-step explanation:

all you have to do is just plug f(x) into the number you want. So if you see any x's, all you gotta do is plug that number after f for x.

So an example of an equation for one of your number is:

[tex]f\left(x\right)=x^2+x[/tex]

you then want to plug the number after f for the x's. (I'm doing f(-3).

[tex]f\left(-3\right)=\left(-3\right)^2-3[/tex]

You then should get the equation above.

after that you solve.

[tex]f\left(-3\right)=9-3[/tex]

[tex]f\left(-3\right)=6[/tex]

just follow these steps and you should be fine :))

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