Question

X+y=?
Law of 1st exponents?
a+b+=?

Answer 1

1st law of exponents=(x+y)square=x^2+2xy+y^2

x,y,a,b are variables...any alphabets can be used.

no difference between solutions according to the variables used.

So,(a+b)^2=a^2+2ab+b^2

HOPE THE ANSWER HELPS