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15-06-2020
Mathematics

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If f(x) = 3x^2 +1 and g(x) = 1-x, what is the value of (f-g)(2)

Respuesta :

15-06-2020

Answer:

14

Step-by-step explanation:

Let's find (f-g)(x)

[tex]3x^{2} + 1 - (1-x)\\3x^{2} + 1 -1 + x\\3x^{2} + x[/tex]

Now let's plug in x=2, so to find (f-g)(2)

[tex]3(2)^{2} + 2\\12 + 2 = 14[/tex]

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