I have two questions, if any help is given I'd appreciate it.

Simplify using the laws of exponents.

1) (3t - 2t^(-1)) / t^3

2) (3p^2 - p^(-3)) / p^4

Thank you very much. :)

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- September 12th 2007, 12:31 PMJeavusSimplify using Exponent Laws
I have two questions, if any help is given I'd appreciate it.

Simplify using the laws of exponents.

1) (3t - 2t^(-1)) / t^3

2) (3p^2 - p^(-3)) / p^4

Thank you very much. :) - September 12th 2007, 12:33 PMJhevon
- September 12th 2007, 12:37 PMJeavus
Can you explain how you got:

3 t^{1 - 3} - 2t^{-1-3}

Thanks. :)

EDIT: Nevermind, sorry.

- September 12th 2007, 12:40 PMJhevon
- September 12th 2007, 12:47 PMJeavus
So my final answers were:

(3t - 2t^(-1)) / t^3

= 3t / t^3 - 2t^(-1)/t^3

= 3t^(1-3) - 2t^(-1-3)

= 3t^(-2) - 2t^(-4)

= (3/t^2) - (2/t^4)

= (3t^2 - 2)/t^4

Is that correct?

(3p^2 - p^(-3))/p^4

= 3p^(2-4) - p^(-3-4)

= 3p^(-2) - p^(-7)

= (3/p^2) - (1/p^7)

= (3p^5 - 1) / p^7

Is that correct? - September 12th 2007, 12:52 PMJhevon
- September 12th 2007, 01:00 PMJeavus
How do I go about solving a problem like this?

1) (4 - (square root)x)/x^(3/2) - September 12th 2007, 01:11 PMJhevon
you do this the same as the last two, except you must know that

see post #3 here to learn how to change various root-forms into powers. - September 12th 2007, 01:25 PMJeavus
And do you know how to go abouts solving these two? Last two I promise. :)

1) (x-9) / (x^(1/2)-3)

2) (x-1)/((square root)x - x) - September 12th 2007, 01:31 PMJhevon
- September 12th 2007, 01:36 PMJeavus
Thanks so much for all your help. :)

PS: I did what you requested! :P - September 12th 2007, 01:41 PMJhevon