Maths Algebraic Expressions part 7 (Addition of Algebraic Expressions) CBSE Class 8 Mathematics VIII

TL;DR

Learn how to add and subtract algebraic expressions by collecting like terms and combining their coefficients.

Transcript

hello friends this video on algebraic expressions part 7 is brought to you by exam feel calm no more your cram exam so now that we got a fair idea about analytic expression now the next question that might bother you in how do we perform different operations and algebraic expressions for example if you are given two expression 5x + 3 y squared now ... Read More

Key Insights

• 🍉 Algebraic expressions can be added by rearranging terms and adding the numerical coefficients of like terms.
• 😑 Adding expressions with unlike terms is not possible.
• 🍉 Binomial expressions can be added by rearranging terms and combining like terms.
• 😑 Adding expressions with more terms can be simplified by writing them in a tabular format.
• 🪜 The process of adding algebraic expressions involves collecting like terms, adding coefficients, and leaving the algebraic coefficients unchanged.
• 😑 The result of adding expressions may be a monomial, binomial, or trinomial.
• 😑 Subtraction of algebraic expressions follows the same steps as addition, but with the difference of subtracting coefficients instead of adding them.

Questions & Answers

Q: How do you add algebraic expressions?

To add algebraic expressions, first rearrange the terms to collect like terms together. Then, add the numerical coefficients of the like terms while keeping the algebraic coefficients unchanged.

Q: Can you add any two expressions together?

No, you can only add expressions with like terms. Unlike terms, which have different variable factors, cannot be added together.

Q: What happens when adding binomial expressions?

When adding binomial expressions, rearrange the terms and collect like terms together. If there are no like terms, the result will be a trinomial expression.

Q: How can adding expressions with more terms be simplified?

When adding expressions with more terms, it is helpful to arrange them in a tabular format, with like terms written below each other. This makes it easier to add the like terms and avoid mistakes.

Summary & Key Takeaways

• This video explains how to add and subtract algebraic expressions, focusing on collecting like terms.

• Like terms have the same variable factors, allowing for easy addition of their numerical coefficients.

• The process involves rearranging terms, adding the numerical coefficients, and keeping the algebraic coefficients unchanged.