Question

factorise -: (x + y) - (x + y)²​

Answer 1

Step-by-step explanation:

(x−y)2+(y−x)2=x2−2xy+y2+y2+x2−2xy

=2(x2+y2)−4xy=2[(x2+y2)]−2xy

=>=2[x2+y2−−−−−−√−2xy−−−√][x2+y2−−−−−−√+2xy−−−√]

Answer 2

Answer:

4xy

Step-by-step explanation:

(x+y)² - (x-1)²

=> (x²+y²+2xy)-(x²+y²-2xy)

=> x²+y²+2xy-x²-y²+2xy

∴ 4xy

HOPE THIS HELPS YOU!

ALL THE BEST!!! :)