SOLUTION: please help me solve the following logx with base 2 + log base2(x+5)-2log 3 base 2=2

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Question 163097: please help me solve the following logx with base 2 + log base2(x+5)-2log 3 base 2=2
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
using rules for logs __ log2{[x(x+5)]/3^2}=2 __ (x^2+5x)/9=4 __ x^2+5x=36

x^2+5x-36=0 __ factoring __ (x+9)(x-4)=0

x+9=0 __ x=-9 __ logs not defined for negative quantities

x-4=0 __ x=4