Hi I'm new to open study, If someone could please help me with these 3 questions. I cant seem to get them right.
1) Given the following functions f(x) and g(x), solve for (f ⋅ g)(2) :
f(x) = 3x2 + 2
g(x) = x − 8
2) Given the following functions f(x) and g(x), solve f[g(10)]
f(x) = 10x + 8
g(x) = x + 9
3) Given the following functions f(x) and g(x), solve (f + g)(3)
f(x) = 2x + 21
g(x) = x − 24

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(f ⋅ g)(2) is short for
f(2) * g(2)
can you find f(2) ?

I have no idea how to start.

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