Question

-x² +x -2/9 =0 conta?

Answer 1

boa noite !!!!

$- x {}^{2} + x - \frac{2}{9} = 0 \\ \\ - x {}^{2} + x = \frac{2}{9} \\ \\ x {}^{2} - x = - \frac{2}{9} \\ \\ x {}^{2} - x + ( \frac{1}{2} ) {}^{2} = - \frac{2}{9} + ( \frac{1}{2} ) {}^{2} \\ \\ (x - \frac{1}{2} ) {}^{2} = \frac{1}{36} \\ \\ x1 = \frac{1}{3} \\ \\ x2 = \frac{2}{3}$

espero que eu tenha conseguido te ajudar...