Explanation:
m(m - 6) = 0
it is a square equation as m² - 6m = 0
so, there must be 2 solutions.
luckily, the initial firm of the equation gives us both of them right away.
when is m(m-6) = 0 ?
either m = 0 or m-6 = 0
so, m = 0 is the first solution.
and m-6 = 0 means m = 6 is the second solution.