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1. 9^x=3^x-1
9^x=3^x-1

or
?
3. The second one
9^x=3^x-1
you have to split the 9^ into 3^2x because 3^2 is 9 , then the equation become 3^2x=3^x-1 i think thats how you do it try it
5. And then log both sides and simplify it?
6. Thank you for the help, still not too sure but i got x=-1
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8. I did plus forget what I sent

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9. That was supposed to be in reply to the OP.

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10. ffs... pretend I don't exist please

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11. Moved to maths

ffs... pretend I don't exist pleasePosted from TSR Mobile
You know you can edit posts?
12. (Original post by rayquaza17)
Moved to maths

You know you can edit posts?
prsom

13. So you are correct, .
14. Thanks guys
15. Anybody know how to this..

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Anybody know how to this..

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Remember to use the laws of logs.
18. I got to this and stopped..

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Updated: January 17, 2016
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