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Luciana Flores
Mathematics
12 November, 14:16
Log2 (x+2) - log2 (x-5) = 3
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Zachery Stevens
12 November, 14:19
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x=3
Explanation:
log2 (x+5) - log2 (x-2) = 3
combine the log terms as follows
log2 (x+5 x-2) = 3
then by definition
(x+5 x-2) = 23 = 8
then some algebra
x+5=8x-16
7x=21, x = 3
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