## Trillography 2 years ago What is a simpler form of the radical expression? I need someone to check my answer!

1. Trillography

2. Trillography

It either 7|x^3|y^4 or 7x^3|y^4| I'm pretty sure it's the first one right?

3. T0mmy

Work out what 4th root 2401 is and the rest is probably more straightforward.

4. wio

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

5. wio

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

6. Trillography

7. wio

@Trillography Given what I said, you can figure it out with certainty, right?

8. Trillography

Dude, both of my answers that I think are right have A.V. bars ...

9. T0mmy

Was going to say 3 or 4 but now I've got it.

10. T0mmy

Cheers wio. ;D

11. T0mmy

-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

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

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

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