# MAT 221 MAT221 Week 1 Discussion Evaluating Algebraic Expressions (Ashford)

MAT 221 Week 1 Discussion (New)

- Evaluating Algebraic Expressions. Read the following instructions in order to complete this discussion, and review the example of how to complete the math required for this assignment:
- Write your birth date or the birth date of someone in your family as mm/dd/yy. (Example: March 13, 1981 is written 3/13/81, and November 7, 1967 is written 11/7/67).

ď‚§Â Now let a = the one- or two-digit month number,

ď‚§Â b = theÂ negativeÂ of the one- or two-digit day number, and

ď‚§Â c = the two-digit year number.

(Our example: a = 3, b = -13, and c = 81Â orÂ a = 11, b = -7, and c = 67) - Use the following algebraic expressions for parts c-d of the discussion:

ď‚§a3Â â€“b3

ď‚§(aâ€“b)(a2Â +ab+b2)

ď‚§bâ€“c 2b â€“ a

c. Evaluate the three given expressions using the a, b, and c from your birth date.Â Make sure that b isnegativeÂ when you plug in the values.

- After you have your math worked out on scratch paper, post your results as well as a description of the steps you took to evaluate the expressions.

ď‚§Â Did you notice anything interesting about the results of a3Â â€“ b3Â and (a â€“ b)(a2Â + ab + b2)? Was this coincidence or do you think there is a reason for this? - Incorporate the following five math vocabulary words at least once into your discussion. UseÂ boldÂ font to emphasize the words in your writing (Do not write definitions for the words; use them appropriately in sentences describing your math work.):

ď‚§Â Exponent

ď‚§Â Integer

ď‚§Â Variable

ď‚§Â Lowest termsÂ ď‚§Â Divisor

Your initial post should be 150-250 words in length. Respond to at least two of your classmatesâ€™ posts by Day 7 in at least a paragraph. Do you agree with how your classmates used the vocabulary? Did the student handle theÂ negatives in the formulas accurately?