Question

Решите неравенство: 4x^2-49<0

Answer 1

$4 {x}^{2} - 49 < 0 \ 4 {x}^{2} < 49 \ {x}^{2} < frac{49}{4} \ \ x < frac{7}{2} \ x > - frac{7}{2}$
х € (-7/2; 7/2)

Answer 2

спасибо)