airbelle08 airbelle08

10-12-2020
Mathematics

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Describe the error made in subtracting the two rational expressions shown:

Describe the error made in subtracting the two rational expressions shown class=

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10-12-2020

The negative sign was not distributed to the 2. If it was then it would have a 3 in the numerator

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leahmurray leahmurray

09-03-2021

Answer:

You must subtract all terms of the numerator being subtracted out, not just the first term.

The negative 2 should have been subtracted out to get a numerator of x+1-x+2.

The simplified numerator of the difference should be 3, not –1.

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