One zero of f(x)=x^3-2x^2-5+6 is 1 what are the other zeros of the function

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One zero of f(x)=x^3-2x^2-5+6 is 1 what are the other zeros of the function

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Calantha 4 years 2021-07-25T10:51:54+00:00 1 Answers 5 views 0

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  1. kimcuc
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    2021-07-25T10:52:58+00:00
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    Answer:

    the other zeros of this function are {-2, 3}

    Step-by-step explanation:

    Use synthetic division to find the roots.  The coefficients of this cubic function are 1, -2, -5, 6, and we begin by using 1 as our first divisor:

    1    /    1    -2    -5    6

                   +1      -1    -6

        ————————–

             1     -1       -6    0

    Because the remainder is zero (0), we can conclude that 1 is indeed a root of the given polynomial.  The quotient is 1x^2  – 1x  – 6, whose roots can be found either through synthetic division or factoring.  In this case the factors are (x – 3) and (x + 2), so the other zeros of this function are {-2, 3}.

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )