## anonymous one year ago expand the following function ln(a(b-4)^2 e^(4c^2))

1. freckles

$\ln(a(b-4)^2e^{4c^2})$ it this right:

2. anonymous

yes

3. freckles

have you tried using the product rule yet? $\ln(a \cdot b)=\ln(a)+\ln(b)$

4. anonymous

this is what i got but im not sure lna+2ln(b-4)+4c^2

5. anonymous

this is what i got but im not sure lna+2ln(b-4)+4c^2

6. freckles

$\ln(a)+\ln((b-4)^2)+\ln(e^{4c^2} ) \text{ by product rule } \\ \ln(a)+2 \ln(b-4)+\ln(e^{4c^2}) \text{ by power rule } \\ \ln(a)+2 \ln(b-4)+4c^2 \text{ using the inverse fact}$ you are right!

7. anonymous

thanks