Consecutive even integers differ by two.
first even integer we call x the second we call
x + 2. Product means multiply. Therefore
x(x + 2) = 120 or x^2 + 2x = 120
x^2 + 2x -120 = 0 factor into
(x + 12)(x - 10) = 0 solving
x = -12 and/or x =10, negative 12 does not work.
Therefore 10 and 12 are your two even integers.