Question 773364
Which do you mean:
{{{4p^2-4=0}}}
OR
{{{(4p)^2-4=0}}}
?


Either way, there is the difference of two squares.
{{{4p^2-4=(2p+2)(2p-2)}}}.
{{{(4p)^2-4=(4p+2)(4p-2)}}}.
Pick the one that you need or have.


Other than that, if a and b are real numbers, the ab=0 means that either a=0, or b=0 or a=b=0.