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)