Definition
What is a variable?
A letter that represents an unknown number.
b + 9 - 5
Variable
6x - x
5x
Are these like terms?
5n and n5
No, they do not have the same exponent.
What are like terms?
Have the same variable and exponent?
m3 + 8
Exponent
11x + 3 - 2x
9x + 3
Are these like terms?
7x2 and 8x2
Yes, they have the same variable and exponent.
What is a coefficient?
A number in front of a variable
7x + 3x + 5
Constant
8x + 5n - 25 - 3x
5x + 5n - 25
A constant is a?
Number
What are the four operations of arithmetic?
Addition, Subtraction, Multiplication and Division
5n + 3 + m3
Coefficient
7n + x2 + 8n -2x
15n + x2 -2x
Write an algebraic expression for the statement below:
5 minus t
5 - t
What is an algebraic expression?
Is a mathematical phrase that can include numbers, variables and operation symbols
What is the correct word for the highlighted portion?
2x + 3 + x2
Term
20 + n3 + 9y
What are the three steps in addition and subtraction of like terms?
Step 2: Add or subtract the coefficients
Step 3: Bring down unlike terms