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# Indices Help watch

1. Im stuck on the more complicated Indices, I understand individual rules but when they are combined i tend to lose track:
The question is as follows, I have put how i attempted it could you please say what if if any ive done right and where i went wrong.

|x\= bad attempt at square root

3|r4\ X (r2)-2
-----------------
r3

I put: r4/3 X r-4
--------------
r3

= r4/3 X 1/r4
--------------
r3

= r4/12 = r1/3
-------
r3

Any steps missing?
Where did i go wrong?
2. Is the numerator

3(root(r^4) x (r^2)^-2 ?
or is it the cube root at the start
3. I'm struggling to understand your maths notation, sorry.

But indices like multiplication is commutative. Look out for brackets and make sure you do the multiplication and division of indicies before the addition and subtraction.
4. I will assume cube root given your 4/3

4/3 - 4 - 3 =
5. Sorry it is 3 cube root R4

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Updated: September 26, 2011
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