Addition and Subtraction of Polynomials Answers
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What is the additive inverse of the polynomial?–6x3 + 4x2 – 4x
A
6x3 + 4x2 + 4xB
6x3 – 4x2 + 4xC
–6x3 – 4x2 – 4xD
6x3 + 4x2 – 4x2
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Which expression can be used to find the sum of the polynomials?(9 – 3x2) + (–8x2 + 4x + 5)
A
Option
B
Option
C
Option
D
Option
3
Lucia finds that . What error did Lucia make?
A
She found the difference instead of the sum.B
She combined the terms 3x2 and 7x2 incorrectly.C
She combined the terms 3x and –9x incorrectly.D
She did not combine all like terms.4
What is the difference of the polynomials?
A
mn – 11B
mn + 3C
Option
D
Option
5
Which expression can be used to find the difference of the polynomials?(4m – 5) – (6m – 7 + 2n)
A
(4m – 5) + (6m + 7 + 2n)B
(4m – 5) + (–6m + 7 + 2n)C
(4m – 5) + (–6m – 7 – 2n)D
(4m – 5) + (–6m + 7 – 2n)6
What is the sum of the polynomials?
A
4m + 3B
4m – 24n + 3C
30m – 5D
30m – 24n – 57
What is the sum of the polynomials?
A
Option
B
Option
C
Option
D
Option
8
Samuel found the difference of the polynomials. = What value is missing from his solution?
A
8B
9C
21D
229
What is the missing polynomial? – (20 – 4x – 5x2) = 20 – 7x2
A
Option
B
Option
C
Option
D
Option
10
What is the sum of the polynomials?(m + n + 3) + (m + n + 4)
A
–1B
Option
C
2m + 2n + 7D
Option
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