Solve (3a^2)(4a^2 - 2a 9)

Simplify the expression

12 a^{4} - 54 a^{3}

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6 a^{3} (2 a - 9)

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a_{1} = 0, a_{2} = \frac{9}{2}

Alternative Form

a_{1} = 0, a_{2} = 4.5

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