(sqrt(x^2+6x+9))-(sqrt(x^2-2x+1))

Question

(sqrt(x^2+6x+9))-(sqrt(x^2-2x+1))

Answer 1

(sqrt(x^2+6x+9))-(sqrt(x^2-2x+1))=V(x+3)^2  -V(x-1)^2=  I x+3 I - I x-1I