Question

The function g is defined by g(x)=2x^2+3
Find g(5a)

Answer 1

g(5)= 103

Explanation:

2x is 2(5)^2+3

2*5 is 10

10^2=100

100+3 = 103

Answer 2

For this case we have a function of the form
`y = g (x)`

Where:

`g (x) = 2x ^ 2 + 3`

We must find g (5a), that is, substitute
`x = 5a`:

Substituting: in the function we have:

`g (5a) = 2 (5a) ^ 2 + 3\\g (5a) = 2 * 25a ^ 2 + 3\\g (5a) = 50a ^ 2 + 3`

Finally, the answer is:

`g (5a) = 50a ^ 2 + 3`

Answer:

`g (5a) = 50a ^ 2 + 3`