What's an equation with a solution set of (-3, 0, 7)

With work included in the answer? c:

(x+3)(x-0)(x-7) = 0
has the presented solution set

x(x²-4x-21) = 0

x³ - 4x² - 21x = 0

or any equation of the form:
a(x³ - 4x² - 21x) = 0
where a is any real number.

x(x + 3)(x - 7) = 0

x(x^2 - 4x - 21) = 0

x^3 - 4x^2 - 21x = 0