I need help making a C++ program that evaluates polynomials from an input file. If you could implement a linked list that would be very helpful as well. The number in the parentheses is the number that should be substituted for "x" while solving. Input file should be named "poly.txt" and output file should be named "answers.txt". Thank you so much in advance.

Sample Input File f (3.2)5.9x11 x*3 -3x10 f (2.75) 1.57x-47-2x^30 + x = Sample Output File f(5) = 7x^2-9 = 166 f (3.2)5.9x11 x*3 - 3x101787961.820 f (1.75) = 1.57x-47-2x^30 + x 415572768585.904 Sample Input File f (3.2)5.9x11 x*3 -3x10 f (2.75) 1.57x-47-2x^30 + x = Sample Output File f(5) = 7x^2-9 = 166 f (3.2)5.9x11 x*3 - 3x101787961.820 f (1.75) = 1.57x-47-2x^30 + x 415572768585.904