Question

3. Which of the following are the roots of the quadratic function below?

Answer 1

Answer I don’t know sorry

Answer 2

Answer:

x = ± 12

Step-by-step explanation:

Given

f(x) = x² - 144

To find the roots set f(x) = 0, that is

x² - 144 = 0 ( add 144 to both sides )

x² = 144 ( take the square root of both sides )

x = ± $\sqrt{144}$ = ± 12