Question

solve for x. log[4](x+4)+log[4](x+16)=3
a. 16
b. 0 or -20
c. 0
d. -20
e. none of the above

Answer 1

c, 1+2=3

Answer 2

\[\log _{4}(0+4)=1\]\[\log _{4}(0+16)=2\]

Answer 3

Need to check that -20 out also

Answer 4

nice

Answer 5

Need to check that -20 out also\[\log _{4}(-20+4)=\log _{4}-16\] don't think that is a 2. Anyone want to comment.

Answer 6

\[4^{x}=-16\] ?????

Answer 7

4*4*(-1)

Answer 8

is only 0

Answer 9

or just

Answer 10

O.K Thanks

Answer 11

nice

Answer 12

I guess that wraps it up Yardbird84

Answer 13

thank you for your help