Question

log(a^2-b^2)= ?

Answer 1

a = +- 1, b = 0

Answer 2

a^2 -b^2=(a+b)(a-b)
log((a+b)(a-b))= log(a+b)+log(a-b), log rule for mulitpication

Answer 3

And that ^

Answer 4

thank you both :)