Question

Find and simplify the expression if f(x) = x² - 4.
A. f(2x)

Answer 1

To find the expression f(2x), substitute x with 2x in f(x) = x² - 4 and simplify the expression

Step-by-step explanation:

To find the expression f(2x), we need to substitute x with 2x in the given expression f(x) = x² - 4. Let's write the expression with the substitution:

f(2x) = (2x)² - 4

Now, simplify the expression:

• f(2x) = 4x² - 4

Therefore, the simplified expression is 4x² - 4.