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1 December, 17:06

Find all the zeros of the equation - 4x^4-44x^2+3600=0

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Answers (2)
  1. 1 December, 17:07
    0
    -4x^4 - 44x^2 + 3600 = 0

    Take out the GCF of 4

    - x^4 - 11x^2 + 900 = 0

    Factor

    (-x^2 + 25) (x^2 + 36) = 0

    Set each factor equal to zero and solve.

    - x^2 + 25 = 0 x^2 + 36 = 0

    add x^2 to both sides subtract 36 from both sides

    25 = x^2 x^2 = - 36

    Take sq rt of both sides Take sq rt of both sides

    + - 5 = x x = + - 6i

    Real Zeros Imaginary Zeros
  2. 1 December, 17:28
    0
    -5, 5, 6i, - 6i

    Is 100% right.
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