Question

Resolva a equação 18y²-24y+8=0

Answer 1

$18y^2-24y+8=0\\\Delta = (-24)^2-4 \cdot 18 \cdot 8\\\Delta = 576 - 72 \cdot 8\\\Delta = 576 - 576\\\Delta = 0\\\\x=\dfrac{-(-24)\pm \sqrt{0}}{2 \cdot 18} = \dfrac{24}{36} = \dfrac{4}{6}\\\\S=\left\{ \dfrac{4}{6} \right\}$