AnswersTX-Algebra II AUnit Test

Unit Test Answers

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1
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Use the expression below to complete the following tasks.(3a2 - 5ab + b2) - (-3a2 + 2b2 + 8ab)What is the additive inverse of the polynomial being subtracted?

A
-3a2 - 2b2 - 8ab
B
-3a2 + 2b2 - 8ab
C
3a2 - 2b2 - 8ab
D
3a2 + 2b2 + 8ab
2
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Complete the statement. (3a2 – 5ab + b2) – (–3a2 + 2b2 + 8ab) =

A
6a² - 13ab - b²
B
6a² - 3ab - 3b²
C
-13ab - b²
D
-3ab - 3b²
3

What is the difference of the polynomials?

A
0.7t³ - 0.2t² - 6t - 8
B
0.7t³ - t² - 6t - 8
C
1.3t³ - t² + 6t - 8
D
1.3t³ - 0.2t² - 6t - 8
5

What is the sum of the polynomials?

A
1.3t3 + t2 – 42t + 8
B
1.3t3 + t2 – 6t + 8
C
1.9t3 + 8.4t2 – 42t
D
1.9t2 – 42t + 8
6

After you rewrite subtraction as addition of the additive inverse, how can the like terms be grouped?

A
[3a2 + (–3a2)] + (–5ab + 8ab) + [b2 + (–2b2)]
B
[3a2 + (–3a2)] + (–5ab + 8ab) + (b2 + 2b2)
C
(3a2 + 3a2) + [–5ab + (–8ab)] + [b2 + (–2b2)]
D
(3a2 + 3a2) + [–5ab + (–2b2)] + [b2 + (–8ab)]
7

Complete the tasks to subtract the polynomials vertically.(1.3t3 + 0.4t2 – 24t) – (0.6t2 + 8 – 18t)What is the additive inverse of the polynomial being subtracted?

A
–0.6t2 + (–8) + (–18t)
B
–0.6t2 + (–8) + 18t
C
–0.6t2 + 8 – 18t
D
0.6t2 + (–8) + 18t
8

The diagram shows the plans for the triangular park. How much longer is BC than AC?

A
(3x2 – 25x – 12) feet
B
(3x2 – 5x – 12) feet
C
(3x2 + 5x – 4) feet
D
(3x2 + 25x – 4) feet
9

Choose the correct values for A, B, C, and D that align like terms to find the sum vertically. 1.3t3 + 0.4t2 + (–24t)

Question illustration
A
A = (–0.6t2) B = (–8) C = 18t D = 0t3
B
A = 0t3 B = (–0.6t2) C = 18t D = (–8)
C
A = 0t3 B = (–0.6t2) C = (–8) D = 18t

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