clairexuan0205 clairexuan0205 03-07-2022 Mathematics contestada One of the five quadratics below has a repeated root. (The other four have distinct roots.) What is the repeated root?$\begin{align*}&-x^2 + 18x + 81 \\&3x^2 - 6x + 9 \\&8x^2 - 32x + 32 \\&25x^2 - 30x - 9 \\&x^2 - 14x + 196\end{align*}$
