Решите неравенство: 4x^2-49<0

Question

Решите неравенство: 4x^2-49<0

Answer 1

- \frac{7}{2} " alt="4 {x}^{2} - 49 < 0 \\ 4 {x}^{2} < 49 \\ {x}^{2} < \frac{49}{4} \\ \\ x < \frac{7}{2} \\ x > - \frac{7}{2} " align="absmiddle" class="latex-formula">
х € (-7/2; 7/2)

Comments

спасибо)