Question

Решите неравенство
-2x^2-4x>0

Answer 1

$- 2 {x}^{2} - 4x > 0 \ - 2x(x + 2) > 0 \ - 2x(x + 2) = 0 \ x = 0 : : and : : : x = - 2 \ - - - ( - 2) + + + (0) - - - \ - 2 < x < 0 \ xin (- 2;0)$