" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
cara :
4(x+2)(x-2) = (4x+8)(x-2)
= 4x²-8x+8x-16
= 4x²-16
KARENA
4 x^{2} -16=4[ x^{2}-16]
=4[ x^{2} - 4^{2} ]
=4(x+2)(x-2)