1. Simplify the logarithmic expression. Express powers as factors. log3z7
2. Write the following expression as a sum​ and/or difference of logarithms. Express powers as factors. ln[e(x+2)]
3. Write the expression as a single logarithm. 7 log5u + 9 log5v
4. Write the expression as a single logarithm. log4(x2-4) - 5 log4(x+2)