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What are the real or imaginary solutions of the polynomials x4 - 52x2 + 576 = 0

a. No Solution

b. - 4,4,-6,6

c. - 4, - 6

d. 0,4,6

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Answers (1)
  1. 14 December, 00:01
    0
    Hello,

    Answer B

    x^4-52x²+576=0

    ==>x^4-16x²-36x²+576=0

    ==>x² (x²-16) - 36 (x²-16) = 0

    ==> (x²-16) (x²-36) = 0

    ==> (x+4) (x-4) (x+6) (x-6) = 0
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