Question

Phân tích x^2-2xy+y^2+3x-3y

Answer 1

không biết

Answer 2

\(x^2-2xy+y^2+3x-3y\)

\(=\left(x-y\right)^2+3\left(x-y\right)\)

\(=\left(x-y\right)\left(x-y+3\right)\)

Answer 3

x² - 2xy + y² + 3x - 3y

= x² - y² + 3 ( x - y ) 

= ( x - y )² + 3 ( x - y )

= ( x - y ) ( x - y + 3 )