Question

B) 2x (x - y) + 3y (x - y)​

Answer 1

Taking common

Answer: 2x (x-y) + 3y (x-y)

= ( x-y ) ( 2x-3y )

Answer 2

Use distributive law

`\boxed{\sf a(b+c)=ab+ac}`

Now

`\\ \sf\longmapsto 2x(x-y)+3y(x-y)`

`\\ \sf\longmapsto 2x^2-2xy+3xy-3y^2`

`\\ \sf\longmapsto 2x^2-3y^2-2xy+3x^2`

`\\ \sf\longmapsto 2x^2-3y^2+xy`