How do you simplify 2+-2/2

Consider the reflection of parallelogram pqrs across the line of reflection, . if rr' = 14, then rz = . if sx = 5, then = 5.

What is always true when two whole numbers are subtracted?

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a.p.