Решить неравенство:

Question

Решить неравенство:
0" alt="x ^{2} - 10x + 21 > 0" align="absmiddle" class="latex-formula">

Answer 1

0 \\ x ^{2} - 10x + 21 = 0 \\ x_{1} + x_{2} = 10 \\ x_{1} \times x_{2} =21 \\ x_{1} = 3 \\ x_{2} =7 \\ \\ ( - \infty ;3) U(7 ; + \infty )" alt="x ^{2} - 10x + 21 > 0 \\ x ^{2} - 10x + 21 = 0 \\ x_{1} + x_{2} = 10 \\ x_{1} \times x_{2} =21 \\ x_{1} = 3 \\ x_{2} =7 \\ \\ ( - \infty ;3) U(7 ; + \infty )" align="absmiddle" class="latex-formula">