Question

√(x-5) + √(10-x) < 3

Answer 1

-/(x-5)^2<(3--/(10-x))^2
x-5 < 9-6-/10-x)+10-x
x-5 < 19-6-/10-x)-x
(6-/10-x)^2 < (24 - 2x ) ^2
36 (10-x)< 576-96x +4x
360- 36 x < 576 -92x
56x < 216
x < 216/56
x < 27/7
решил как смог !!!