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Mathematics
Problem
The equation
7
log
7
(
x
2
−
4
x
+
2
)
=
x
−
2
7^{\log_7(x^2-4x+2)} = x-2
7
l
o
g
7
(
x
2
−
4
x
+
2
)
=
x
−
2
has (a) two natural solution (b) one prime solution (c) no composite solution (d) one integral solution
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