Question

СРОЧНО ДАЮ 50 БАЛЛОВ

Answer 1

1. $\\\frac{x+6}{x+5} +  \frac{10}{(x-5)(x+5)} = \frac{4}{3}\\\\\frac{(x+6)3(x-5)}{3(x+5)(x-5)} +  \frac{10*3}{3(x-5)(x+5)} = \frac{4(x+5)(x-5)}{3(x+5)(x-5)}$

$\frac{3x^{2}-75 }{3(x-5)(x+5)}+\frac{30}{{3(x-5)(x+5)}}  - \frac{4-x^{2} - 100 }{{3(x-5)(x+5)}} = 0$

$3x^{2}-75+30-4x^{2} + 100=0$

$-x^{2} - 155 = 0\\\\x^{2} = -155.$

Остальные решать аналогичным способом.