" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
b)(3-y)(3+y)=3²-y²=9-y²
c)(2+x)(2-x)=2²-x²=4-x²
b)9 - 6y + y²
c)4 - 4x + x²
(a+b)do kwadratu (a-b) do kwadratu = akwadrat - b kwadrat
a) (x-2)*(x+2) = xkwadrat - 4
b) (3-y)(3+y) = 9- ykwadrat
c) (2+x)(2-x) = 4- xkwadrat
;)