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What is Meant by Like and Unlike Terms? Video Lecture - Class 8
FAQs on What is Meant by Like and Unlike Terms? Video Lecture - Class 8
| 1. What are like terms in algebraic expressions? |  |
Ans. Like terms in algebraic expressions are terms that have the same variables raised to the same powers. For example, in the expression 3x + 2y + 5x, the terms 3x and 5x are like terms because they both have the variable x raised to the power of 1.
| 2. What are unlike terms in algebraic expressions? | |
Ans. Unlike terms in algebraic expressions are terms that have different variables or different powers of the same variable. For example, in the expression 2x^2 + 3y, the terms 2x^2 and 3y are unlike terms because they have different variables (x and y) and different powers.
| 3. How can we simplify algebraic expressions by combining like terms? | |
Ans. To simplify algebraic expressions by combining like terms, we add or subtract the coefficients of the like terms while keeping the variables and their exponents the same. For example, in the expression 4x + 2y - 3x, we can combine the like terms 4x and -3x to get x, resulting in the simplified expression x + 2y.
| 4. Can we add or subtract unlike terms in algebraic expressions? | |
Ans. No, we cannot add or subtract unlike terms in algebraic expressions directly. Unlike terms have different variables or different powers of the same variable, so they cannot be combined through addition or subtraction. They can only be simplified individually.
| 5. What is the purpose of combining like terms in algebraic expressions? | |
Ans. Combining like terms in algebraic expressions helps simplify the expressions and make them easier to work with. It allows us to condense the terms with similar variables and powers, reducing the complexity of the expression and facilitating further calculations or analysis.
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Oct 25, 2024 Last updated |
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