SOLUTION: Solve the equation: log2(x+7) + log2(x+8)=1
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Question 759924: Solve the equation: log2(x+7) + log2(x+8)=1
Found 2 solutions by stanbon, MathLover1:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Solve the equation: log2(x+7) + log2(x+8)=1
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log2[(x+7)(x+8)] = 1
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(x+7)(x+8) = 2
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x^2 + 15x + 54 = 0
--------
(x+9)(x+6) = 0
Acceptable solution:
x = -6
==================
cheers,
Stan H.
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
..if log same, then
solutions:
or
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