SOLUTION: Logx+log (x-4)=6

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Question 1011696: Logx+log (x-4)=6
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
log%28%28x%29%29%2Blog%28%28x-4%29%29=6
log%28%28x%28x-4%29%29%29=6
log%28%28x%5E2-4x%29%29=6
b%5E6=x%5E2-4x
x%5E2-4x-b%5E6=0
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Going further - apply formula for general solution of a quadratic equation,
x=%284%2B-+sqrt%2816-4%2Ab%5E6%29%29%2F2
and simplify to
highlight_green%28x=2%2B-+sqrt%284%2Bb%5E6%29%29.

Anything further depends on knowing the base b.

WHAT BASE FOR THE LOGARITHM?