SOLUTION: log(base 4)(x-9)=2 log(base 4)z + log(base 4)(z-3)=1

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Question 353233: log(base 4)(x-9)=2
log(base 4)z + log(base 4)(z-3)=1
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
Hi,
log(base 4)(x-9)=2

4%5E2+=+x+-+9
x = 25
.
log(base 4)z + log(base 4)(z-3)=1

.

4%5E1+=+z%28z-3%29%29
z%5E2+-+3z+-++4+=+0
(z - 4)(z + 1) = 0
.
z = -1 & 4