Question

Phân tích thành nhân tử :

x(x+y)-5x-5y

Answer 1

\(x\left(x+y\right)-5x-5y\)

\(=x\left(x+y\right)-\left(5x+5y\right)\)

\(=x\left(x+y\right)-5\left(x+y\right)\)

\(=\left(x-5\right)\left(x+y\right)\)

Answer 2

\(x\left(x+y\right)-5x-5y=x\left(x+y\right)-5\left(x+y\right)=\left(x-5\right)\left(x+y\right)\)

Answer 3

Answer 4

x(x+y) -5x-5y

=x(x+y) -(5x+5y)

=x+(x+y) -5(x+y)

=(x+y).(x-5)