– 19 ترور x^3+3x^2+9x=1 then x^3+3/x=?​

Question

– 19 ترور
x^3+3x^2+9x=1
then x^3+3/x=?​

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Brielle 3 weeks 2021-10-05T05:19:40+00:00 1 Answer 0 views 0

Answers ( )

    0
    2021-10-05T05:21:26+00:00

    Answer:

    Equation at the end ..

    (((x3) – 3×2) – 9x) – 1 = 0

    :

    Checking for a perfect cube

    2.1 x3-3×2-9x-1 is not a perfect cube

    Trying to factor by pulling out :

    2.2 Factoring: x3-3×2-9x-1

    Thoughtfully split the expression at hand into groups, each group having two terms :

    Group 1: -9x-1

    Group 2: -3×2+x3

    Pull out from each group separately :

    Group 1: (9x+1) • (-1)

    Group 2: (x-3) • (x2)

    Step-by-step explanation:

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