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Trillography

  • 3 years ago

What is a simpler form of the radical expression? I need someone to check my answer!

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  1. Trillography
    • 3 years ago
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  2. Trillography
    • 3 years ago
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    It either 7|x^3|y^4 or 7x^3|y^4| I'm pretty sure it's the first one right?

  3. T0mmy
    • 3 years ago
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    Work out what 4th root 2401 is and the rest is probably more straightforward.

  4. wio
    • 3 years ago
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    Well, remember that \(|y^4| = y^4\) since anything to an even power is going to be positive.

  5. wio
    • 3 years ago
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    This isn't the case for \(|x^3|\) which is why the absolute value bars must stay.

  6. Trillography
    • 3 years ago
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    Answer choices:

  7. wio
    • 3 years ago
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    @Trillography Given what I said, you can figure it out with certainty, right?

  8. Trillography
    • 3 years ago
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    Dude, both of my answers that I think are right have A.V. bars ...

  9. T0mmy
    • 3 years ago
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    Was going to say 3 or 4 but now I've got it.

  10. T0mmy
    • 3 years ago
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    Cheers wio. ;D

  11. T0mmy
    • 3 years ago
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    -x * -x * -x does not equal -x * -x Good luck. BTW are we answering your monday maths homework? You've asked a few questions.

  12. Trillography
    • 3 years ago
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    No, your definitely not. I've already finished all my hw. I'm working on a p. exam. I've asked more than a few and about 80% of them didn't get answers.

  13. T0mmy
    • 3 years ago
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    Ok 'x' flips its sign, potentially, if it starts out negative. As does the 'y' term. However, the 'y' term is multiplied an even number of times - whereas the 'x' term is multiplied an odd number of times.

  14. T0mmy
    • 3 years ago
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    So: -1*-1=1 -1*-1*-1=-1 -1*-1-*1-*1=1 So by using the bars i.e. the absolute value we get answer (c.) that is 1 from zero. Be it +1 or -1

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