Question

решите уравнения. 3600x2-4900=0

Answer 1

$3600x {}^{2} - 4900 = 0 | \div 100 \\ 36x {}^{2} - 49 = 0 \\ 36x {}^{2} = 49 \\ x = \frac{ 7}{6 } \\ x = - \frac{7}{6}$