Question

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

Answer 1

`Answer: \\ {q}^(2) - 125 = 0 \\ \Leftrightarrow (q - 5 √(5) )(q + 5 √(5) ) = 0 \\ \Leftrightarrow q = 5 √(5) \: \vee \: q = - 5 √(5) \\ \Rightarrow Roots:( - 5 √(5) ,0) \: \& \: (5 √(5) ,0)`