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You can find infinitely many expressions that are equivalent to any given expression. For example, you can add and divide an arbitrary number.In this case, one interesting option is to factor the given expression. You can use the fact that there is a common factor; also, that you have the difference of two squares.

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8y ago
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8y ago

x^2(3x - 2)(3x + 2)

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Q: What expressions are equivalent to 9x4-4x2?
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