Question

Gente Resolva pra mim pvf : (x-2y)²

Answer 1

(x+2y)² = (x+2y) . (x+2y) = 
x² +2xy + 2xy +4y² = 
x² +4xy +4y². 

Answer 2

(x - 2Y)^2

(X - 2Y) . (X - 2Y)

X^2 - 2YX - 2YX + 4Y^2

X^2 - 4YX + 4Y^2