Question

based on "p^2-q^2=4" and "p-q=-1" which is bigger, "p+q" or "4"?

Answer 1

\[p^2-q^2=(p-q)(p+q)=4\] and
\[p-q=-1\implies p+q=-4\]

Answer 2

Oh, I see how you did it, thanx!