Answer:
The value of f[g(2)] is 71.
Step-by-step explanation:
We need to find f[g(2)].
The first step is finding f[g(x)]
We have that:
[tex]f(x) = 3x^{2} - 4[/tex]
[tex]g(x) = 2x + 1[/tex]
To find f[g(x)], the first step is replacing each x is f by g(x). So
[tex]f(g(x)) = 3(2x+1)^{2} - 4[/tex]
Now we replace x by 2
[tex]f(g(2)) = 3(2*2+1)^{2} - 4 = 75 - 4 = 71[/tex]
The value of f[g(2)] is 71.
Answer:
g(2)= 2(2) + 1 = 4 + 1 = 5
f(5)= 3(5)^2 - 4 = 3(25) - 4= 75 - 4= 71
Step-by-step explanation:
