Question 922415
 (x+5)(x+p)=x^2+2x+k
x^2 + 5x + px + 5p = x^2 + 2x + k
x^2 + (5+p)x + 5p = x^2 + 2x + k
5p = k
.......
(5+p) = 2
 p = -3   and k = -15