MAT 117 week 1 Participation
1. What four steps should be used in evaluating expressions? Can these steps be skipped or rearranged? Explain your answers & provide an example.Post a 100-200 word response
2. All Challenge: Simplify the expression that Lauren listed: 4+(5x6^2+3)
3. Imagine your younger relative—of middle school age—was taking an algebra course and asked for your help. How would you teach the multiplication of polynomials to her? Provide an example.Post a 100-200 word response
4. The four steps that must be followed began inside of the parentheses first completing the operations from left to right. When there are more than one set of parentheses you must begin with the innermost set first. The second step would be exponents. The exponents are to be completed by working from left to right. The third step is multiplication and division that is performed from left to right. The fourth step in the order of operations is addition and subtraction evaluated from left to right. All four of these steps can be easily remembered by using this simply phase Please Excuse My Dear Aunt Sally (PEMDAS) which is Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction.All four steps cannot be rearranged or skipped when following certain rules. However, when the problem does not contain a certain step, then it can be skipped. For example: (3+6) x 2 First start with the parentheses, (3+6) = 9, then 9 x 2=18.
5. The four steps that should be used in evaluating expressions are PEMDAS(Please Excuse My Dear Aunt Susie). Parenthesis is worked first and should be worked from left to right, Exponents which are worked from left to right is second, Multiplication and Division which are worked left and right and Addition and Subtraction which are also worked left to right.These four steps cannot be skipped or rearranged because there are rules and you will not get the correct answer if you try to solve them another way or skip a step.An example of evaluating expressions:
(5x + 2) + (-6x + 8)
5x + 2 + -6x + 8
(5x + -6x) + (2 + 8)=
-x + 10
6. The four steps that should be used in evaluating expressions are worked from left to right starting with any parenthesis in the equation. Following parenthesis it is exponents, multiplication or division. Continuing from left to right it is then addition or subtraction. However these steps can neither be skipper or rearranged. Personally, I think this order make sense, to me it seems like the hardest part of the equation is being done first and then you work your way down to the less complex part of the equation.
For example,
(5x+3) - (7x+8)
5x + 3 -7x-8 (opposite of what is in parenthesis)
-2x -5
