Question

What are the roots of the quadratic function f(q) = q^2 - 125

Answer 1

To find the roots of the quadratic, set the function equal to 0 and solve for q. If we do that here, we get:

q^2 - 125 = 0
q^2 = 125
sqrt(q^2) = sqrt(125)
q = (+/-)(5 * sqrt(5))