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29 July, 18:03

What are all the real and complex roots of the polynomial 2x3 + 18x2 + 62x + 78, given that one root is x = - 3?

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  1. 29 July, 22:00
    0
    Say it like this et:

    x - green marbles

    4x - red marbles

    x/2 - blue marbles
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