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# Common mistakes made when solving algebraic expression

Though the students enjoy solving algebraic expressions, however in many cases they tend to make mistakes. These mistakes could be because of carelessness or because the child did not understand the concept properly. It is always a good idea to be aware about the common mistakes which students usually make so that these can be corrected from the early age. Here are some of the common mistakes which students usually make when solving algebraic expression.

## ☞ Subtract 4n²−2n from 2n²−1 = 2n²−2n−1

Ways to teach the children to minimize this error
• Subtract 4n²−2n from 2n²−1
=(2n²−1) − (4n²−2n)
=−2n²+2n−1

• The best way to remove the above confusion and to ensure the children have less chance of committing mistakes is to practice the problems related to the above situations. Click on Algebraic Expression to practice.

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Given below are other commonly made mistakes in Math:
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