Question

x²-x+y²-y giúp mình vs mọi người ơi

Answer 1

x² - x + y² - y = x . x - x + y . y - y

= 2x + 2y

= 2(x + y)

Answer 2

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

\(=x.x-x+y.y-y\)

\(=2x+2y\)

\(2\left(x+y\right)\)

Answer 3

\(x^2-x+y^2-y=x.x-y.y=2\left(x-y\right)\)