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28 September, 01:24

Simplify 3a (a^2-3a+4) - 4 (3a^3-2a^2)

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  1. 28 September, 02:30
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    -9a³ - a² + 12a

    Step-by-step explanation:

    3a (a²-3a+4) - 4 (3a³-2a²) = 3a³ - 9a² + 12a - 12a³ + 8a²

    = (3a³ - 12a³) + ( - 9a² + 8a²) + 12a

    = - 9a³ - a² + 12a
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