Question

(x+y)(2x+y)(x+2y)(x-y)​

Answer 1

Answer:

Step-by-step explanation:

=x(2x+y)+y(2x+y)+x(x−y)+2y(x−y)

=2x  

2

+xy+2xy+y  

2

+x  

2

−xy+2xy−2y  

2

 

=(2+1)x  

2

+(1+2−1+2)xy+(1−2)y  

2

 

=3x  

2

+4xy−y  

2