Question 1121223
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The sum of coefficients of any polynomial f(x) is equal to f(1), the value of the polynomial at x= 1.


In your case the sum of coefficients of the given polynomial is equal to f(1) = 32, as it is given.


The rest of the info is irrelevant and was given with the only goal to confuse you and to direct you onto wrong way.



    //  So, they actually want to check if you know firmly the right way to solve it.
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Completed and solved.