If x-3 and x-1/3 are both factors of px^2 + 5x + r then prove that p=r

Which of the following statement about pascal's triangle are true?

If the endpoints of the diameter of a circle are (8, 6) and (2,0), what is the standard form equation of the circle? a) (x + 5)2 + (y + 3)2 = 18 (x + 5)2 + (y + 3)2 = 3.72 (x - 5)2 + (y - 3)2 = 18 d) (x - 5)2 + (y - 3)2 = 32

Select all of the following expressions that are equal to 2.5.