Need help ASAP last minute hw i need to do

Can someone me i’m confused. will give brainliest and a whole bunch of points

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

Find the equation of a line that is perpendicular to line g that contains (p, q). coordinate plane with line g that passes through the points negative 3 comma 6 and 0 comma 5 3x − y = 3p − q 3x + y = q − 3p x − y = p − q x + y = q − p