" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
1-2x+x^2<x^2+6x+9<x^2+10x+25 /-x^2
-2x-6x<9-1 i 6x-10x<25-9
-8x<8 i -4x<16
x>-1 i x>-4
Odp. x>-1