Answer:
64
Explanation:
We have the function f(x) 7x^2 + 8x + 20 and are asked to solve it.
Since we know that x equals 2. We can substitute 2 for every x in the expression.
7(2)^2 + 8(2) + 20
First do the exponent :
2^2
4
7(4) + 8(2) + 20
Multiply 7(4) and 8(2) :
7(4)
28
8(2)
16
28 + 16 + 20
64