Factor Each Completely: x^2-15x+56

What is the pattern in the values as the exponents increase?

What number should be added to both sides of the equation to complete this square? x^2-10x=7

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