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1. Solving with indices
Here is a question which I'm stuck on:

Solve the following equation:

Below is my working out:

Now I do not know what i am supposed to do further.

Thanks for any help provided.
2. Re: Solving with indices
2nd line down - cube it - don`t square it, you should end up with:

3. Re: Solving with indices
But I did cube root the x. I squared the LHS as I have to - the power clearly is 2 over 3.
Last edited by krisshP; 06-07-2012 at 18:06.
4. Re: Solving with indices
(Original post by krisshP)
But I did cube root the x. I squared the LHS as I have to - the power clearly is 2 over 3.

Cube both sides

Last edited by raheem94; 07-07-2012 at 14:04. Reason: Mistake corrected!
5. Re: Solving with indices
How do I know x from what is below:

??
6. Re: Solving with indices
(Original post by krisshP)
How do I know x from what is below:

??

Btw, which grade are you in?
7. Re: Solving with indices
(Original post by raheem94)

Btw, which grade are you in?
I'm at the start of AS Maths. I'm predicted an A in GCSE maths (studying C1 + C2 in summer), but I might just about get an A*.
Last edited by krisshP; 07-07-2012 at 12:07.
8. Re: Solving with indices
I worked out the answer and I would like to share it:

Divide both sides by the x gives:

0.5 X 3=1.5, hence

9. Re: Solving with indices
(Original post by krisshP)
I worked out the answer and I would like to share it:

Divide both sides by the x gives:

0.5 X 3=1.5, hence

Before sharing answers you should check whether they are correct or not.

How can be a solution to

How did you do divide both sides by , i only see one side divided by it.

You needed to factorize not divide it by
Last edited by raheem94; 07-07-2012 at 13:54.
10. Re: Solving with indices
(Original post by raheem94)

Cube root both sides

You should have said " Cube both sides" rather than " Cube root both sides"
11. Re: Solving with indices
(Original post by steve2005)
You should have said " Cube both sides" rather than " Cube root both sides"
Sorry, my bad Thanks for correcting.

I didn't noticed my mistake.
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