evaluate the expression

Answer:
-213
Step-by-step explanation:
Hi there!
[tex]3|x+y|^2-(xy)^2[/tex]
Replace x with 3 and y with -5
[tex]= 3|3+(-5)|^2-[(3)(-5)]^2\\= 3|3-5|^2-(-15)^2\\= 3(2)^2-225\\= 3(4)-225\\= 12-225\\= -213[/tex]
I hope this helps!