Mmmmm....
Let f(x) = ax^m + bx^n + cx^p + .......+ constant term
f(0) = a(0)^m + b(0)^n + c(0)^p + ......+ constant term = 47
The terms with coefficients all = 0....so the constant term must be 47
f(1) = a(1)^m + b(1)^n + c(1)^p + .......+ 47 = 32
The coefficient terms will just sum to the sum of their coefficients ...i.e., a + b + c + ......
So....
sum of coefficients + constant term = 32
sum of coefficients + 47 = 32
sum of coefficients = 32 - 47 = - 15