It is an expression and if it contains an equality sign then it is an equation.
That sounds like the definition for Recursive Formula.
multiterm mathematical expression: a mathematical expression consisting of the sum of a number of terms, each of which contains a constant and variables raised to a positive integral power
Yes, a mathematical expression can have no variables, but such an expression is usually not very useful. An example of a valid expression without variables is: 1+1=2
Any expression that contains one or more variable, such as x; x+2; x+y; x2, etc. Depending on the values of the variables, the expression can also have different values.
An algebraic expression is a type of expression that contains a variable or variables.
An algebraic expression is a type of expression that contains a variable or variables.
Expression
An expression.
It is, in fact, called an expression. To be more precise, an algebraic expression.
A variable expression includes variables.
An algebraic expression contains one or more letters that stand for [numeric] variables.
A variable expression is an expression which contains variables(symbol that represents a certain value). For example, 4a-90. 4a-90 would be the expression an a is a variable
Algebraic expression
What are the choices?
It is an expression and if it contains an equality sign then it is an equation.
That sounds like the definition for Recursive Formula.