2x^3(x - 3)(x + 3)
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Zero Product Property
x squared -2x-3 equals 0 is the same as (x + 1)(x - 3) = 0
Suppose x3-4x = 0. To solve, factor: x3-4x = x(x2-4) = x(x+2)(x-2) = 0 Now, a product equals 0 if and only one or more of the factors equals 0, so set each factor to 0 and solve. The roots are 0,-2 and +2.
(x + 6)(x - 6)
No, there cannot be a zero in any scale factor.