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((f-32)^5)/9 = c // - c
((f-32)^5)/9-c = 0
((f-32)^5)/9+(9*(-c))/9 = 0
(f-32)^5+9*(-c) = 0
f^5-9*c-160*f^4+10240*f^3-327680*f^2+5242880*f-33554432 = 0
(f^5-9*c-160*f^4+10240*f^3-327680*f^2+5242880*f-33554432)/9 = 0
(f^5-9*c-160*f^4+10240*f^3-327680*f^2+5242880*f-33554432)/9 = 0 // * 9
f^5-9*c-160*f^4+10240*f^3-327680*f^2+5242880*f-33554432 = 0
x belongs to the empty set
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