Addition and Subtraction of Polynomials Answers
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1
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What is the sum of the polynomials?
A
mc017-2.jpg
B
mc017-3.jpg
C
9x + 4D
mc017-4.jpg
2
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What is the difference of the polynomials?
A
mn – 11B
mn + 3C
mc016-2.jpg
D
mc016-3.jpg
3
What is the additive inverse of the polynomial?
A
mc007-2.jpg
B
mc007-3.jpg
C
mc007-4.jpg
D
mc007-5.jpg
4
What is the sum of the polynomials?
A
4m + 3B
4m – 24n + 3C
30m – 5D
30m – 24n – 55
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.6
What is the sum of the polynomials?(m + n + 3) + (m + n + 4)
A
–1B
mc015-1.jpg
C
2m + 2n + 7D
mc015-2.jpg
7
Which expression can be used to find the difference of the polynomials?(10m – 6) – (7m – 4)
A
[10m + (–7m)] + [(–6) + 4]B
(10m + 7m) + [(–6) + (–4)]C
[(–10m) + (–7m)] + (6 + 4)D
[10m + (–7m)] + [6 + (–4)]8
What is the missing polynomial? – (20 – 4x – 5x2) = 20 – 7x2
A
mc024-2.jpg
B
mc024-3.jpg
C
mc024-4.jpg
D
mc024-5.jpg
9
Marcus finds that . What error did Marcus make?
A
He combined the terms 5x and –7x incorrectly.B
He combined the terms 3x2 and 4x2 incorrectly.C
He combined the terms –2y2 and 12y2 incorrectly.D
He subtracted the polynomials instead of adding.
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