## anonymous 4 years ago SOLVE ln(x-3)+ln(x+4)=1

1. saifoo.khan

$\large \ln (x-3) + \ln (x+4) = \ln_e e$

2. anonymous

uhm so what follows?

3. saifoo.khan

$\ln(x-3)(x+4) = \ln_e e$ $(x-3)(x+4) = e$

4. anonymous

what else

5. saifoo.khan

Solve using a calc. Make a quadratic equation and so on.

6. anonymous

doesnt it hit on two places

7. saifoo.khan

Yes it will, one negative and one postitve.

8. anonymous

put the assignment tells me to round to the nearest 4th place if possible and it only has spot to answer which means my answer has to be one thing..

9. anonymous

so use the positive?

10. saifoo.khan

Yes!!

11. saifoo.khan

The value of 'x" can't be -ve.

12. anonymous

okay i see, can you help me through another one?

13. anonymous

x^210^x-2x10^x=3(10^x)