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Textbook: Algebraic Expressions | Mathematics for Grade 10 PDF Download

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FAQs on Textbook: Algebraic Expressions - Mathematics for Grade 10

1. What are algebraic expressions?
Ans. Algebraic expressions are mathematical phrases that include numbers, variables (like x and y), and operations such as addition, subtraction, multiplication, and division. They do not have an equal sign and can represent a wide range of values.
2. How do you simplify an algebraic expression?
Ans. To simplify an algebraic expression, you combine like terms (terms that have the same variable raised to the same power) and perform any arithmetic operations where possible. For example, in the expression 2x + 3x, you can combine the terms to get 5x.
3. What is the difference between an expression and an equation?
Ans. An expression is a combination of numbers, variables, and operations without an equal sign, while an equation is a statement that two expressions are equal, indicated by an equal sign. For example, 3x + 2 is an expression, whereas 3x + 2 = 11 is an equation.
4. How do you evaluate an algebraic expression?
Ans. To evaluate an algebraic expression, you substitute the values of the variables into the expression and perform the calculations. For example, if you have the expression 2x + 3 and x = 4, you would substitute to get 2(4) + 3 = 8 + 3 = 11.
5. What are like terms in algebra?
Ans. Like terms in algebra are terms that have the same variable raised to the same power. For example, 5x and 2x are like terms, while 5x and 3y are not. Only like terms can be combined by adding or subtracting their coefficients.
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