The problem is to solve the equation $3x^3 - 27x = 0$ for $x$.

AlgebraPolynomial EquationsFactoringCubic EquationsRoots of Equations
2025/4/8

1. Problem Description

The problem is to solve the equation 3x327x=03x^3 - 27x = 0 for xx.

2. Solution Steps

First, we can factor out a common factor of 3x3x from both terms:
3x(x29)=03x(x^2 - 9) = 0
Next, we can further factor the term x29x^2 - 9 as a difference of squares:
x29=(x3)(x+3)x^2 - 9 = (x - 3)(x + 3)
So, the equation becomes:
3x(x3)(x+3)=03x(x - 3)(x + 3) = 0
Now, we set each factor equal to zero and solve for xx:
3x=0    x=03x = 0 \implies x = 0
x3=0    x=3x - 3 = 0 \implies x = 3
x+3=0    x=3x + 3 = 0 \implies x = -3

3. Final Answer

The solutions are x=0x = 0, x=3x = 3, and x=3x = -3.

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