Answer:
4
Explanation:
log6((x+5)x)
log6(x^2 + 5x) = 2
x^2 + 5x = 6^2
x^2 + 5x -36 = 0
(x + 9) (x - 4) x =-9, 4
x = 4
The answer is -9 and 4
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