Question

What is the value of the expression ƒ2+ 5 if ƒ = 3?

Answer 1

f2 + 5 when f = 3 is 11.

Explanation:

So let's start by replacing f with 3:

3(2) + 5 =

When we have a variable right next to another number, we multiply. Some examples of this are 2x or 5y or 10000t, or even 0.001j.

Therefore, we multiply the 3 and 2 together, which gets us 6:

6 + 5 =

And 6 plus 5 equals 11

6 + 5 = 11, final answer.