Let the two numbers be x-1 and x, and the next consecutive number be x+1.
x(x - 1) = x + 1 + 47
x² - x = x + 48
x² - 2x - 48 = 0
(x - 8)(x + 6) = 0
If x - 8 = 0
x = 8
If x + 6 = 0
x = -6
This would mean that x = 8 or -6, meaning that the two consecutive numbers are 7 and 8 or -7 and -6.
