Question

Решите неравенство 4(x+3)-(0,5x+1)(2x+6)<6

Answer 1

4x+12-(x^2+3x+2x+6)<6;;;;4x+12-x^2-3x-2x-6<6;;;
4x-x^2-5x<0;;;
X^2+x>0;;;
X(x+1)>0;;;
1)x>0;;;
2)x+1>0;;;
X>-1