Question

Product of (x+y) and (x+y) is ​

Answer 1

Answer:

$x^{2}$ + $y^{2}$ + 2xy

Step-by-step explanation:

( x + y ) ( x + y )

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

= $x^{2}$ + xy + xy + $y^{2}$

=  $x^{2}$ + $y^{2}$ + 2xy