# Financial Polynomials

**Question description**

1. Solve problem 90 on page 304 of *Elementary and Intermediate Algebra*.
Be sure that you show all steps of the squaring of the
binomial and multiplication along with any simplification which might be
required

*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 :

P = $200 and r = 10%, and also with

P = $5670 and r = 3.5%

2. Complete problem 70 on page 311 of *Elementary and Intermediate Algebra*. Show all steps of the division.

(−9*x*^{3} + 3*x*^{2} − 15*x*) ÷ (−3*x*)

**Write a two- to three-page paper that is formatted in APA style**and according to the Math Writing Guide. Format your math work as shown in the Instructor Guidance and be concise in your reasoning. In the body of your essay, please make sure to:**Demonstrate your solution to the above problems, making sure to include all mathematical work and a discussion of how and why this is applicable to your everyday life.****Use the underline feature with single spacing to set up the division(s), and use the “strikethrough” font to show the canceling factors. Can you think of another way this division could be approached and worked out? If yes, briefly describe the method.****Incorporate the following five math vocabulary words into your discussion. Use bold font to emphasize the words in your writing (Do not write definitions for the words; use them appropriately in sentences describing your math work.):****FOIL****Like terms****Descending order****Dividend****Divisor**

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