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ololo11 [35]
4 years ago
8

Kenisha tried to subtract two polynomials her work is shown below. At which step did Kenisha make an error, If at all?

Mathematics
1 answer:
inysia [295]4 years ago
4 0

Answer:

Step 1

Step-by-step explanation:

When you subtract a polynomial in parentheses, you have to remove them from the parentheses first, which Kenisha did right. The problem is that because the numbers are being subtracted, <em>all of the signs switch</em>, which they forgot to do. Step one should look like: 2b² + 3b + 11 <em>- 7b² + 5b - 1</em>

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