Vocabulary 1
An expression that combines numbers, operations and variables
algebraic expression
A mathematical sentence that contains an equal sign between two expressions.
5x + 8 = 28
equation
A number whose cube root is an integer.
perfect cube
Evaluate
3x + 4 = 28
8
3b + 6b
9b
The number multiplied by a variable in a term.
like the 4 in the equation
4x + 3 = 19
coefficient
Operations that undo each other.
inverse operation
The set of numbers that includes all rational and irrational numbers
real numbers
Evaluate
7n - 6 + 3 = 18
What is n?
18
5t - 4 + 8 -2t
3t + 4
A term that has no variable.
Like the number 3 in
4x + 3 = 19
constant
Terms that have the same variable(s).
like the terms 2x and 4x in the expression
2x + 7 + 4x
like terms
Any value(s) that makes an equation true.
solution
7n + 2 - 2n = 22
What is n?
4
9c + 3c + 8 - 7
12c + 1
One of the three equal factors of a number.
Like 4 x 4 x 4 = 64
cube root
A number whose square root is an integer.
perfect square
One of the two equal factors of a number.
like the two 5's in
5 x 5 = 25
square root
Evaluate
3x + 2x + x -4 = 8
What is x?
2
How many terms are there in
4n + 13 - 5n + 3
4
A property that can be used to rewrite an expression without parentheses.
3 (x + 5) = 3x + 15
A number that cannot be expressed as a fraction of two integers.
irrational number
A number or the product of a number and a variable in an algebraic expression; a number in a sequence.
Also numbers and/or numbers and variables separated by addition + or subtraction -
term
Evaluate
3x + 8x - 2x + 6 -1= 50
5
How many terms are there in
12d/3 - 7d + 9d + 5 - 6d
5