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15 February, 11:07

What are the possible number of positive real, negative real, and complex zeros of. f (x) = 4x3 + x2 + 10x - 14.

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  1. 15 February, 11:26
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    1 sign change when x=1, there is 1 positve root

    2 sign changes when x = - 1. there are 2 possible negative roots

    since complex roots come in 2s, there might be 0 negative roots, and 2 complex roots

    close, but we cant say for sure that there are 0 or 2 negative roots; or 0 or 2 complex roots

    Positive Real: 1

    Negative Real: 0, or 2

    Complex: 0, or 2
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