#1
On this problem, I need to simplify this:

(10x^3y^5)^-3

I've got this so far: 10x^-9y^-15.


How do I get rid of the negative exponents 9 and 15?
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#3
Remember.. x^-1 = 1/x


So 10x^-9y^-15 is = 1/(10x^9y^15)
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#4
Why didn't you do anything to the 10x?

Edit: this problem doesn't make sense... How do you put an exponent on an exponent? Or does the "^" mean something else?
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Last edited by merfsullivan at Feb 25, 2009,
#7
No no no no. You are supposed to expand the exponents. Example -> (x-2)^3 = (x-3)(x-3)(x-3) and NOT (x^3-8)

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#8
what does ^ mean?


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#9
Exponent.

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[quote="'[BurnTheDusk"]']Boss pedals may be built like tanks but I would rather buy a cardboard box that is on my side than pay for a tank that is working against me.
#10
Quote by Dr.Pain-MD
Exponent.


What does exponent mean?

Like I'm good at maths but I don't know how you guys write it on here?


Quote by Våd Hamster
Find a dice and assign a number to each girl. Throw the dice.


The number you hope for at the moment you throw the dice, is the one you'll want to keep.
#11
If you don't know what an exponent is, then I seriously doubt your math skills.

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[quote="'[BurnTheDusk"]']Boss pedals may be built like tanks but I would rather buy a cardboard box that is on my side than pay for a tank that is working against me.
#12
I might nkow what it is but not using that word


Quote by Våd Hamster
Find a dice and assign a number to each girl. Throw the dice.


The number you hope for at the moment you throw the dice, is the one you'll want to keep.
#13
Distribute the ^ -3 to the 10, x, and y. so you get 1/(10^3x^9y^15),like someone already showed the negative exponent can be taken as the reciprocal of any given exponent and the 10 is inside the quantity so it also gets raised to -3
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Last edited by rcbass at Feb 25, 2009,
#14
In other words x^3 is x to the power of three/third degree/cubed.
EDIT: rcbass - that is wrong. Expand the terms, not just multiply out the exponents.

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[quote="'[BurnTheDusk"]']Boss pedals may be built like tanks but I would rather buy a cardboard box that is on my side than pay for a tank that is working against me.
#16
Okay - I give up. This is what happens when you ask UG for math help.

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[quote="'[BurnTheDusk"]']Boss pedals may be built like tanks but I would rather buy a cardboard box that is on my side than pay for a tank that is working against me.
#17
Quote by Dr.Pain-MD
Okay - I give up. This is what happens when you ask UG for math help.


Well, rcbass is right, anyway.