Question

решите примеры:
1)(x-1)(x+5)<=0
2)x+$\sqrt{x+1}$=1
3)$\frac{2}{x}$+2=$\sqrt{4+\frac{1}{x}\sqrt{64+\frac{144}{x^{2} } } }$

Answer 1

1) [-5 , 1]  э x

2) x = 0

3) x = 2