Question

Which are the roots of the quadratic function f(q) = q2 – 125? Check all that apply.

Answer 1

The answer is positive 25 and negative 25

Answer 2

Answer:

The roots of the quadratic function is 5,-5.

Step-by-step explanation:

Given : Function $f(q)=q^2-125$

To find : The roots of the quadratic function?

Solution :

Step 1 - Write the function as equating to zero to find roots

$q^2-125=0$

Step 2 - Add 125 both side,

$q^2-125+125=125$

$q^2=125$

Step 3 - Taking the root both side,

$\sqrt{q^2}=\sqrt{125}$

$q=\pm5$

Therefore, The roots of the quadratic function is 5,-5.