Addition and Subtraction of Polynomials Answers
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Kendall says the sum of (6x2 + 4xy + 2y2) and (4x2 – 2xy – 3y2) is (10x2 + 2xy – 5y2). What error did Kendall make?
A
He combined the like terms 6x2 and 4x2 incorrectly.B
He combined the like terms 4xy and –2xy incorrectly.C
He combined the like terms 2y2 and –3y2 incorrectly.D
He subtracted the polynomials instead of adding.2
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Anna subtracted (7n2 – 5n + 6) from (5n2 + 4n – 9) as shown below.What error did Anna make?
A
She did not align like terms correctly.B
She forgot to use the additive inverse of (5n2 + 4n – 9).C
She made a mistake when finding the additive inverse of (7n2 – 5n + 6).Did you find these answers helpful?
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