Question

х-7/9 х2=0 решите уравнение

Answer 1

$x - frac{7}{9} {x}^{2} = 0 \ - frac{7}{9} {x}^{2} + x = 0 \ x( - frac{7}{9}x + 1 ) = 0 \ x = 0 : or : - frac{7}{9} x = - 1 \ x = 0 : or : x = 1 frac{2}{7}$