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- Jun 20th 2007, 10:38 AM #1billythekidGuest
## help with log problem pls?

Hi all i need urgent help on a log question thats on our review, i think i might have th e right steps down butnot sure

heres what i have tofar

log x +log(x+15)=2

log x[x(x+15)]=2

x(x+15)=2^10

then x^2+15x=1024

Then x^2+15x-1024=0

to solve and get 2 answers of x

thing is Im not able t go any furhter cant get any answers of 1024 that could equal 15, and same for quadratic forumla

pls help as i need to despr. now this

thanks

- Jun 20th 2007, 11:18 AM #2

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- Jun 20th 2007, 12:19 PM #3