Identifying parts of an algebraic expression

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What is an algebraic expression?
An expression that contains numbers, operations, and one or more symbol.
What are the parts of an algebraic expression called?
terms

Example: 3+ 2x + 7y

3, 2x, and 7y are the terms; terms are separated by addition and subtraction signs
What are symbols called that represent one or more numbers?
variable

Example: 3+ 2x + 7y

x and y are the variables.
What is the numerical factor of a term that contains a variable called?
coefficient

Example: 3+ 2x + 7y

2 and 7 are the coefficients
What are the terms called without a variable?
constant

Example: 3+ 2x + 7y

3 is the constant
Identify the terms, coefficients, and constants in the expression:

12 + 10c
terms: 12, 10c
coefficients: 10
constants: 12
Identify the terms, coefficients, and constants in the expression:

15 + 3w + 1/2
terms: 15, 3w, 1/2
coefficients: 3
constants: 15, 1/2
Identify the terms, coefficients, and constants in the expression:

z² + 9w - 2
terms: z², 9w, 2
coefficients: 9 (and 1 in front of z)
constants: 2