Addition and Subtraction of Polynomials Answers
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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 - 8abB
-3a2 + 2b2 - 8abC
3a2 - 2b2 - 8abD
3a2 + 2b2 + 8ab2
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Use your result from the previous task to find the sum.
A
6ab2B
3ab + 3b2C
-6a2 + 3ab + 3b2D
-6a2 - 13ab + 3b23
What is the difference of the polynomials?
A
0.7t³ - 0.2t² - 6t - 8B
0.7t³ - t² - 6t - 8C
1.3t³ - t² + 6t - 8D
1.3t³ - 0.2t² - 6t - 84
Which equivalent expression would you set up to verify the associative property of addition for(3x + 4) + ((5x2 – 1) + (2x + 6))?
A
(3x + 4) + (5x2 – 1)B
(5x2 – 1) + ((3x + 4) + (2x + 6))C
((3x + 4) + (5x2 – 1)) + (2x + 6)D
(3x + 4) + (5x2 – 1) + (2x + 6)5
What is the sum of the polynomials?
A
1.3t3 + t2 – 42t + 8B
1.3t3 + t2 – 6t + 8C
1.9t3 + 8.4t2 – 42tD
1.9t2 – 42t + 86
The diagram shows the plans for the triangular park. How much longer is BC than AC?
A
(3x2 – 25x – 12) feetB
(3x2 – 5x – 12) feetC
(3x2 + 5x – 4) feetD
(3x2 + 25x – 4) feet7
Choose the correct values for A, B, C, and D that align like terms to find the sum vertically. 1.3t3 + 0.4t2 + (–24t)
A
A = (–0.6t2) B = (–8) C = 18t D = 0t3B
A = 0t3 B = (–0.6t2) C = 18t D = (–8)C
A = 0t3 B = (–0.6t2) C = (–8) D = 18tDid you find these answers helpful?
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