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22 July, 14:48

If a cubic polynomial has zeros at x = - 4, x=0 and x=7, then

A). The polynomial has no imaginary zeros.

B). The polynomial as a pair of imaginary zeros.

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Answers (2)
  1. 22 July, 14:50
    0
    A

    Step-by-step explanation:

    The Fundamental theorem of algebra tells us that a polynomial of degree n has n roots.

    Here the polynomial is a cubic, that is of degree 3

    Thus it will have 3 roots, real and / or imaginary.

    Since imaginary roots occur in conjugate pairs

    Since the polynomial has 3 real roots there are no imaginary roots, thus

    A is the required response.
  2. 22 July, 14:51
    0
    I think the answer ia A that what i think
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