Question

Descompune aplicand succesiv (a±b)^{2} si $A^{2} - B^{2}$
[tex] 4x^{2} + y^{2} - z^{2} +4xy
[/tex]

Answer 1

( 4x²  + 4xy + y² ) - z²  = ( 2x + y)² - z² = 
= ( 2x + y - z ) · ( 2x + y +z)