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19 September, 04:05

4x^3-2x^2+x-2

Predict the number of complex roots and explain how you got it

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  1. 19 September, 04:56
    0
    Step-by-step explanation:

    4x^3-2x^2+x-2

    4x³-2x²+x-2=0

    2x² (x-2) + 1 (x-2) = 0

    (2x²+1) (x-2) = 0

    x-2 = 0 2x²+1 = 0

    x=2 2x² = -1

    x² = - 1/2

    x = √-1/2

    x = √-1/2. 2
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