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anonymous

  • 5 years ago

factor x^4-256

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  1. anonymous
    • 5 years ago
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    note that 256 = 4^4 and x^4 = (x^2)^2

  2. anonymous
    • 5 years ago
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    hmmm ok and so if i do (x^2)^2- 4^4 i should be able to work out the answer. it saya factor completly idk if that changes anything.

  3. myininaya
    • 5 years ago
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    (x^2-16)(x^2+16) you can factor more

  4. myininaya
    • 5 years ago
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    (x-4)(x+4)(x-4i)(x+4i) where i=sqrt(-1)

  5. anonymous
    • 5 years ago
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    i had tried that one and said i was wrong, could i try (x+4)(x-4)(x^2+16) ?

  6. myininaya
    • 5 years ago
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    use the one i typed in if you have talked about imaginary numbers use the one you just typed in if you haven't

  7. anonymous
    • 5 years ago
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    ohh ok cool , thank you so much!

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