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mary_a

can someone help me find the four solutions to this equation?

  • 2 years ago
  • 2 years ago

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  1. mary_a
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    \[y ^{4}-256=0\]

    • 2 years ago
  2. chaguanas
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    Well you start by putting y on one side and 256 on the other

    • 2 years ago
  3. mary_a
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    and then what?

    • 2 years ago
  4. chaguanas
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    Well what did you get, write it on the screen

    • 2 years ago
  5. mary_a
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    I actually don't know exactly what that's supposed to look like. Do I just add 256 to one side?

    • 2 years ago
  6. chaguanas
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    Yes.

    • 2 years ago
  7. mary_a
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    so \[y ^{4}=256\]

    • 2 years ago
  8. zbay
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    now take the 4th root of both sides

    • 2 years ago
  9. Brandon Lam
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    (y^4-16^2)=(y^2-16)(y^2+16) (y-4)(y-4)(y^2+16)

    • 2 years ago
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