" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
(V5 - 3x)^2=5-6xV5+9x^2
(a+2) (a-2)=a^2-4 (a-b)(a+b)=a^2-b^2
(10x+1) (10x-1)=100x^2-1
(4a-26) (4x+26)=16ax+104a-104x-676
(x+5) (x-5)=x^2-25
(3a+1) (3a-1)=9a^2-1
(ab^2 + a^2b) (ab^2- a^2b)=a^2b^4-a^4b^2