1,250 dividend by 41

Which values of p and q result in an equation with exactly one solution? px-43=-42x+q choose all answers that apply: a) p=-43 and q=-43 b) p=42 and q=43 c) p=43 and q=−42 d) p=42 and q=42

Aquadratic equation in standard from is written ax^2= bx+c, where a, b and c are real numbers and a is not zero?

How do you do the foil method with polynomials?