Question

(a-b)x+(a+b)y=a^2-2ab-b^2;(a+b)(x+y)=a^2+b^2

Answer 1

no it's not in order
it should be in this way
1....a^2+b^2=a^2+2ab+b^2
2...(a+b)(x+y)=(a-b)x+(a+b)y








hope it helps
from pihu!!

Answer 2

Answer:

Step-by-step explanation: