Problema Solution

1. Short Answer. State the degree of the given polynomial:

7x7 – 8x6 – 5x5 – 9

(Points : 3)

7x7 – 8x6 – 5x5 – 9

answer is 7

2. List the coefficients of the given polynomial: 6x3 – x2 + x + 7

(Points : 3)

6, 1, 1

6, -1, 1

3, 2, 1

6, -1, 1, 7

3. Choose the best response to describe the polynomial: x3 – 7x2 + 3

(Points : 3)

It has a leading coefficient of 1.

It is a binomial.

It is of degree 7.

It can be simplified by combining like terms.

4. Add the following: (-7x2 – 7x + 1) + (-2x2 + 8x + 9)

(Points : 3)

-9x4 + x2 + 10

-9x2 – 15x + 10

9x2 + x + 10

-9x2 + x + 10

5. Short Answer. Add the following: (6.1x2 – 8.3x – 0.2) + (-7.8x2 – 0.8x + 7.3)

(Points : 3)

(6.1x2 - 8.3x - 0.2) + (-7.8x2 - 0.8x + 7.3)

= -1.7x2 -9.1x - 7.1

6. Essay question: show all work. Find the difference:

(-8x2 – 8x – 4) – (-2x2 – 7x + 3)

Answer provided by our tutors

1. The degree of this polynomial is 7

2. 6, -1, 1, 7

3. it has a leading coefficient of 1

4. Add the following: (-7x2 - 7x + 1) + (-2x2 + 8x + 9)

answer: -9x2 +x +10

 5. Short Answer. Add the following: (6.1x2 - 8.3x - 0.2) + (-7.8x2- 0.8x + 7.3)

(6.1x2 - 8.3x - 0.2) + (-7.8x2 - 0.8x + 7.3)

= -1.7x2 -9.1x - 7.1

 

6. Essay question: show all work. Find the difference:

(-8x2 - 8x - 4) - (-2x2 - 7x + 3)

-8x2+2x2-8x+7x-4-3

-6x2 - x - 7 --> final answer

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