+78 \(\begin{align*} &-x^2 + 18x + 81 \\ &3x^2 - 6x + 9 \\ &8x^2 - 32x + 32 \\ &25x^2 - 30x - 9 \\ &x^2 - 14x + 196 \end{align*}\)
+2668 If a quadratic has a repeated root, the discriminant (\(b^2 - 4ac\)) is equal to 0.
Can you take it from here? Feel free to ask if you need more help
