Unit 2 Expressions and Equations

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Terms in this set (...)

order of operations
the order in which operations in an expression to be evaluated is carried out. 1. parentheses 2. exponents 3. multiplication and division 4. addition and subtraction
numeric expression
an expression that contains only numbers and operation symbols (with no equal sign)
algebraic expression
An expression that contains numbers, operations, variables, and one or more symbols.
exponent
A mathematical notation indicating the number of times a quantity is multiplied by itself.
variable
A letter used to represent one or more numbers
coefficient
A number multiplied by a variable.
constant
A value that does not change
term
A number, a variable, or the product of a number and a variable
like terms
Can be grouped together because they have the same variable raised to the same power
simplify
To write a fraction or expression in simplest form
evaluate
To find the value of a mathematical expression.
equation
A mathematical sentence that contains an equals sign.
solution
1. A method or process for solving a problem. 2. The answer to or disposition of a problem.
inequality
A statement that compares two quantities using <, >, ≤,≥, or ≠
solution set
The set of values that make a statement true