Question

Which are the roots of the quadratic function f(q) = q? - 125? Select two options

* Sr stands for square root*
A) q=5 sr 5
B) q= -5sr5
C) q=3sr5
d) q=-3sr5
e)q=25sr5

Answer 1

Answer:A)q=5sr5
B)q=-5sr5

Explanation:

Given: Quadratic function f(q) = q2 - 125

For roots, f(q) = 0

⇒ q2 - 125 = 0

⇒ q2 = 125

⇒ q2 = 25 × 5

⇒ q = ±5√5