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IMO Longlists
1987 IMO Longlists
32
32
Part of
1987 IMO Longlists
Problems
(1)
Solve 28^x = 19^y +87^z in integers
Source:
9/5/2010
Solve the equation
2
8
x
=
1
9
y
+
8
7
z
28^x = 19^y +87^z
2
8
x
=
1
9
y
+
8
7
z
, where
x
,
y
,
z
x, y, z
x
,
y
,
z
are integers.
inequalities
number theory unsolved
number theory