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**Fra1990****Novice**- Registered: 2024-10-09
- Posts: 1

Hello everyone. I am sitting a GCSE exam (higher tier) as a mature student and I am doing a lot of practice at the moment. I am stuck with an expression, I would be so grateful if somebody could explain me how to solve it in simple term please. This is the expression:

8X² x √2X½

( __________ )³

4X³

Thanks

Francesco

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**Phrzby Phil****Member**- From: Richmond, VA
- Registered: 2022-03-29
- Posts: 50

I assume by "solve" you mean "simplify," as it is not an equation.

I find two things confusing in your expression:

1. Is the small "x" before the radical a "multiply" ? If so, you can delete it. Pretty sloppy notation.

2. Is the "1/2" under the radical supposed to be the X's exponent?

*Last edited by Phrzby Phil (2024-10-10 03:11:33)*

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**phrontister****Real Member**- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 4,868

Hi Fra1990 & Phrzby Phil;

If I've interpreted post #1's expression correctly, then...

Sorry, but simplifying that is beyond what I've learnt in maths...

"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson

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**Bob****Administrator**- Registered: 2010-06-20
- Posts: 10,610

hi Fra1990

Welcome to the forum.

You can simplify powers by using the rules for indices. https://www.mathsisfun.com/algebra/exponent-laws.html

phrontister has tidied up your maths notation to make the expression clearer. But is that what you meant?

Another interpretation of what you've posted is:

Please post again, making it clear which is right.

When you've got x and times in an expression you can use a . for the times to avoid confusion.

Bob

Children are not defined by school ...........The Fonz

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

Sometimes I deliberately make mistakes, just to test you! …………….Bob

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