MAT 136 Southern New Hampshire University 2-3 Problem Set Module Two

[PRINT]
MAT-136-H7250 21EW5 Intro to Quantitative Analysis, 2-3 Problem Set: Module Two
Tanisha Lowe, 5/11/21 at 4:35:31 PM EDT




Question1: Score 2/2

Find the sum.


3 2 2
(4z + 8z − z) + (−4z + z + 7)




Your response Correct response
4*z^3+4*z^2+7 4*z^3+4*z^2+7
Auto graded Grade: 1/1.0 




 Total grade: 1.0×1/1 = 100%
Feedback:

3 2 2
4z + (8z − 4z ) + (−z + z) + 7 Combine like terms.

4z
3
+ 4z
2
+ 7 Simplify.




Question2: Score 2/2

,Find the product.


(5d − 4) (5d + 8)




Your response Correct response
25d^2+20d-32 25*d^2+20*d-32
Auto graded Grade: 1/1.0 




 Total grade: 1.0×1/1 = 100%
Feedback:

5d (5d + 8) − 4 (5d + 8) Use the distributive property.

2
(25d + 40d) − (20d + 32) Multiply.

25d
2
+ (40d − 20d) − 32 Combine like terms.

25d
2
+ 20d − 32 Simplify.




Question3: Score 3/3

, Multiply the polynomials.


2
(8k − 5) (8k + 5k − 1)




Your response Correct response
64k^3-33k+5 64*k^3-33*k+5
Auto graded Grade: 1/1.0 




 Total grade: 1.0×1/1 = 100%
Feedback:

Follow the same steps that we used to multiply polynomials containing only one variable.



8k (8k
2
+ 5k − 1) − 5 (8k
2
+ 5k − 1) Use the distributive property.

(64k
3
+ 40k
2
− 8k) − 40k
2
− 25k + 5 Multiply.

64k
3
+ (40k
2
− 40k
2
) + (−8k − 25k) + 5 Combine like terms.

64k
3
− 33k + 5 Simplify.