Question

Решите неравенства:
7x-11≥10x-8
x²-5x-36<0
|x+2|>3
3x²-2x+1<0

Answer 1

X^2-5x-36<0
D=13
Х1<(5+13)/2=9
Х2<(5-13)/2=-4

Answer 2

3)х+2>3

Answer 3

Х=1

Answer 4

Х>-5

Answer 5

4 сам по принципу 2.))))))