What Is The Sum 2x + Y, X + 2y , X + Y

What is the sum 2x + y, x + 2y , x + y

 

Answer:

3x² + 4xy - y²

Step-by-step explanation:

(x+y)(2x + y) + (x + 2y)(x - y) = (2x + xy + 2xy +y) + (x² - xy + 2xy

=-2y²)

=2x² + x² + xy + 2xy - xy + 2xy + y² - 2y²

=>3x² + 4xy - y²

sana makatulong hehee