If f(x) = 2x² - 10, find f(5)?

Solution:

Given function is

f(x) = 2x² - 10

We need to evaluate when x = 5

f(5) = 2(5)² - 10

f(5) = 2(25) - 10

f(5) = 50 - 10

f(5) = 40

Therefore, f(5) = 40

If f(x) = 2x² - 10, find f(5)?

Summary:

If f(x) = 2x² - 10, then f(5) = 40.