Write a program that declares double variable x 5.8. It then computes and prints the value of the following expression (assume f is a double). Use x(5.8) syntax for declaration not x = 5.8. Display 2 decimals only. f=((1+2x) (1+4x) (1-6x))/ (x² +x -1) Note:Displaying 2 decimal point, I cout.setf (ios::fixed); cout.setf(ios::showpoint); cout.precision (2);

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