SOLUTION: solve & give the exact answer. log(base)2 (x+3) - log(base)2 (x+1) =2
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Question 240208
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solve & give the exact answer.
log(base)2 (x+3) - log(base)2 (x+1) =2
Answer by
edjones(8007)
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log[2](x+3)-log[2](x+1)=2
2^(log[2](x+3))-2^(log[2](x+1)=2^2
(x+3)/(x+1)=4
x+3=4x+4
3x=-1
x=-1/3
.
Ed