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B: Parts of an Expression
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An expression is a mathematical phrase that combines numbers, variables, and operators. It is made up of several parts:
1. Term: A term is a single number, variable, or the product of numbers and variables. For example, in the expression 3x + 2y, the terms are 3x and 2y.
2. Coefficient: The coefficient is the number that multiplies the variable in a term. In the expression 3x + 2y, the coefficients are 3 and 2.
3. Variable: A variable is a letter or symbol that represents an unknown value. In the expression 3x + 2y, x and y are variables.
4. Constant: A constant is a number that does not change in an expression. In the expression 3x + 2y, there are no constants.
5. Operator: An operator is a symbol that performs a specific mathematical operation, such as addition (+), subtraction (-), multiplication (*), or division (/). In the expression 3x + 2y, the operator is (+).
6. Exponent: An exponent is a number that shows how many times a number or variable is multiplied by itself. For example, in the expression 2x^2, the exponent is 2.
These are the main parts that make up an expression. By understanding these parts, you can simplify and algebraically manipulate expressions to solve problems or identify patterns.
1. Term: A term is a single number, variable, or the product of numbers and variables. For example, in the expression 3x + 2y, the terms are 3x and 2y.
2. Coefficient: The coefficient is the number that multiplies the variable in a term. In the expression 3x + 2y, the coefficients are 3 and 2.
3. Variable: A variable is a letter or symbol that represents an unknown value. In the expression 3x + 2y, x and y are variables.
4. Constant: A constant is a number that does not change in an expression. In the expression 3x + 2y, there are no constants.
5. Operator: An operator is a symbol that performs a specific mathematical operation, such as addition (+), subtraction (-), multiplication (*), or division (/). In the expression 3x + 2y, the operator is (+).
6. Exponent: An exponent is a number that shows how many times a number or variable is multiplied by itself. For example, in the expression 2x^2, the exponent is 2.
These are the main parts that make up an expression. By understanding these parts, you can simplify and algebraically manipulate expressions to solve problems or identify patterns.
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