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# Hard GCSE Questions watch

1. Ok... So I've got a couple of questions that I don't know how to do:

1) Find 2 solutions to
I know the answers are 2 and 4, but I got these from Trial and Error - I'm just wondering how to work it out algebraically/using indices rules.

2) Using a calculator, solve
Once again, I've reached an answer of 3.597 using trial and error.
2. You need logarithms which you can learn in a level maths around core 2
3. (Original post by cj_134)
You need logarithms which you can learn in a level maths around core 2
'twas in a GCSE Textbook Maybe you're supposed to use trial and error?
4. (Original post by Benmaster)
'twas in a GCSE Textbook Maybe you're supposed to use trial and error?
Considering it's GCSE, the only way I can think of is using a numerical method, so trial and error seems the most likely.
5. (Original post by Benmaster)
Ok... So I've got a couple of questions that I don't know how to do:

1) Find 2 solutions to
I know the answers are 2 and 4, but I got these from Trial and Error - I'm just wondering how to work it out algebraically/using indices rules.

2) Using a calculator, solve
Once again, I've reached an answer of 3.597 using trial and error.
use logs they wont take away a mark, btw im doing gcse aswell
6. i hate gcse maths its so hard, dont know why im doing a level maths?

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Updated: March 29, 2011
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