Question

plz.pl plz answer show the solution​

Answer 1

Answer:

(d).......................

(x+y)²+2(x+y)+1

= x²+2xy+y²+2(x+y)+1

= x²+2xy+y²+2x+2y+1

= (x+y+1)(x+y+1)

Answer 2

Answer:

answer = D

Step-by-step explanation:

(x+y)²+2(x+y)+1

= x²+2×y+y²+2(x+y)+1

= x²+2×y+y²+2x+2y+1

= (x+y+1)(x+y+1)