Compounded semiannually. P dollars is invested at annual interest rate r for 1 year. If the interest is compounded semiannually, then the polynomial represents the value of the investment after 1 year. Rewrite this expression without parentheses. Evaluate the polynomial if
Not too sure just what you're after, but the expression is
P(1+r/2)^2
P + Pr + Pr^2/4