Question

Simplifique as expressões escrevai os cálculos
a)(x-y)2-x+y
b)(x-y)-x+y
c)(x-y)x+y
d)(x+y)y-x

Answer 1

a)
(x - y)^2 - x + y

x^2 - 2.x.y + y^2 - x + y

x^2 - 2xy + y^2 - x + y

b)
(x - y) - x + y

x - y - x + y

x - x + y - y

0

c)
(x - y).x + y

x^2 - yx + y

d)
(x + y).y - x

xy +y^2 - x

y^2 + xy - x