" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
(1 + 2x)(1 - 2x) = 0
1 + 2x = 0 v 1 - 2x = 0
2x = -1 v -2x = -1
x = -1/2 v x = 1/2
4 - 9x² = 0
(2 + 3x)(2 - 3x) = 0
2 + 3x = 0 v 2 - 3x = 0
3x = -2 /:3 v -3x = -2 /:(-3)
x = -2/3 v x = 2/3
-4x^2=-1/:(-4)
x^2=1/4
x=1/2 lub x=-1/2
4-9x^2=0
-9x^2=-4 /:(-9)
x^2=4/9
x=2/3 lub x=-2/3