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2x * x^2 = 2x^3.

Multiply the parts that are alike. The first term has a coefficient of 2, the second term has a coefficient of 1 (x = 1*x). The first term has variable x (which is x^1), the second term has variable x^2. Since they have the same base (both are x), we can add the powers together (x^2 = x * x, so x * x^2 = x * x * x = x^3)

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14y ago

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