Tuesday

October 21, 2014

October 21, 2014

Posted by **Lucy** on Saturday, March 29, 2008 at 6:37pm.

log4(x-9)=2

Answer:

x-9=4^2

x-9=16

x=11

log4(z)+log4(z-3)=1

Answer:

z+z-3=1

2z=4

z=2

Thanks for checking my work.

- Algebra II -
**Damon**, Saturday, March 29, 2008 at 6:50pmAnswer:

x-9=4^2

x-9=16

x=11 BUT 16 PLUS 9 = 25

log A + log B = log (A+B) !!!!

log4 (z^2 - 3 z ) = 1

z^2 - 3 z = 4^1 = 4

z^2 -3 z -4 = 0

(z-4)(z+1) = 0

z = 4 or -1

- Typed your error by mistake -
**Damon**, Saturday, March 29, 2008 at 6:51pmlog A + log B = log (A*B) !!!!

**Answer this Question**

**Related Questions**

Logarithms - Solve log4 x + log4(x-2)=log4(15) I know how do the example in my ...

Algebra 2 - Simplify: 1. 2log10^5+log10^4 2. 2log3^6-log3^4 3. log4^40-log4^5 4...

math - Solve the equation algebraically. Round the result to three decimal ...

Algebra II - Please check the following: Solve log4(m-3)+ log4(m+3) =2 Answer: 1...

Math - Evaluate the expression without using a calculator: log4(2)= ____? Use a ...

Math(Please check) - solve for x: log4 X - log4 2 = 2 log(2x) = 2 Now what do I ...

Trig/Pre-Calc - Could someone please help me on this problem. I'm really ...

Math - solve for x: log4 X - log4 2 = 2 log(2x) = 2 Now what do I do?

Math Algebra 2 - #4. Express the logarithm in terms of log2M and log2N: log2 1/...

Algebra 2 - log4 (x-2) - log4 (x+1) = 1