Question

-2x elevado a 2 + 6x - 4=o  Galeraaa me ajuda urgenteeee .

Answer 1

$-2x^2+6x-4=0\\ \\ \Delta=6^2-4.(-2).(-4)=36-32=4\\ \\ x=\frac{-6 \pm\sqrt4}{2.(-2)}=\frac{-6 \pm 2}{-4}\\ \\ x_1=2\\ \\ x_2=-1$