" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
maka x^2-2x-3<21
x^2-2x-3-21<0
x^2-2x-24<0
(x-6)(x+4)<0
selanjutnya gunakan garis bilangan
terimakasih