" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
x² - 3x < 4x + 8
x² - 7x - 8 < 0
(x - 8) (x + 1) < 0
++ - - - - +++
_______________________
-1 8
-1 < x < 8
syarat :
*) x² - 3x ≥ 0
x ( x - 3 ) ≥ 0
++ - - - - +++
_____________________
0 3
x ≤ 0 atau x ≥ 3
**) 4x + 8 ≥ 0
x ≥ -2
jadi HP = { x | -1 < x ≤ 0 atau 3 ≤ x < 8 }