" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
B.(a-b)(a-b) =a^2 -ab -ab + b^2 = a^2 -2ab + b^2
"^2" = kuadrat / pangkat dua
= a² - ab + ab - b²
=a² - b²
2a) (a+b)²
= (a + b) (a + b)
=a² + ab + ab + b²
=a² + 2ab + b²
2b) (a-b)²
= (a - b) (a - b)
= a² - ab - ab + b²
=a² - 2ab + b²