SOLUTION: P dollars is invested at annual interest r for 1 year. If the interest is compounded semiannually, then the polynominal P ( 1 + r/2) ^2 represents the value of the investment after

Question 221415: P dollars is invested at annual interest r for 1 year. If the interest is compounded semiannually, then the polynominal P ( 1 + r/2) ^2 represents the value of the investment after 1 year. Rewrite this expression without parentheses. Evaluate the polynominal if p= 200 r=10%
I am not sure how to begin to solve this equation. PLEASE PLEASE HELP!!!
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given expression.

Expand

FOIL

Multiply

Combine like terms.

Reduce

Distribute

-------------------------

Plug in and (the decimal equivalent of 10%).

Square 0.1 to get 0.01

Multiply

Divide

Combine like terms.

So when and

This also means that when and
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