" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Pernyataan yang salah dalah yang nomor ii, dan iii.
karena
(i) 81 - y² = (9+y)(9-y)
(iv) x² + 2x - 24 = (x+6)(x-4)