Simplification of Algebraic Expressions
Algebraic expressions involve variables, constants, and mathematical operations like addition, subtraction, multiplication, and division. Simplification of algebraic expressions involves reducing the expression to its simplest form by combining like terms, performing operations, and removing any unnecessary parentheses or terms.
Examples:
1. Simplify 3x + 2x - 5
To simplify this expression, we need to combine like terms. The like terms in this expression are 3x and 2x, which we can combine to get 5x. So, the simplified expression is:
3x + 2x - 5 = 5x - 5
2. Simplify 2(3x + 4) - 5(x - 2)
To simplify this expression, we need to distribute the 2 and -5 to the terms inside the parentheses and then combine like terms. So, we get:
2(3x + 4) - 5(x - 2) = 6x + 8 - 5x + 10 = x + 18
3. Simplify 5xy - 2x + 3xy - 4y
To simplify this expression, we need to combine the like terms. The like terms in this expression are 5xy and 3xy, which we can combine to get 8xy. The other like terms are -2x and -4y, which we can combine to get -2x - 4y. So, the simplified expression is:
5xy - 2x + 3xy - 4y = 8xy - 2x - 4y
Conclusion:
Simplification of algebraic expressions is an important concept in mathematics that helps in solving complex equations and problems. It is essential to understand the rules of simplification and practice solving various expressions to become proficient in algebraic manipulations.