The number in front of a variable, example 5x.
Coefficient
5x + 4 - 2x
3x + 4
What is 7 - 9?
-2
3 + x = 12
x = 9
What is 2x2 + 3x2 ?
5x2
This rule is used to figure out what should be calculated first when given an expression or equation, such as the following:
9*10(5+8)/3
Hint: Please Excuse My Dear Aunt Sally
Order of Operations
3y + 2y + 4x + 9x
5y + 13x
What is -15 - 5 ?
-20
2x = 26
x = 13
What is 5x times 3x
15x2
A symbol, usually written as a single letter such as X, or Y, that are used to describe any number
Variable
2x2 + 5 - 3x2 - 9
-x2 - 4
5-3
-125
7 = x - 4
x = 11
What is x8 divided by x2 ?
x6
Terms that have the same variables and powers, for example:
7x, 5x, 9x, -3x
Like terms
-6x3 + 3x2 + 8x3 + 7x2
2x3 + 10x2
5 * 4 + (2 - 7)
15
x/7 + 10 = 20
x = 70
What is 14x6y4 divided by 7x3y2
2x3y2
A quantity representing the power to which a given number or expression is to be raised.
Example: 75
Exponent or Power
10y3 + 7y2 - 3y - 4y2 - 7y3 + 3
3y3 + 3y2 + 3y + 3
3 - (-7)
10
3x - 4 = 71
x = 25
(-2x5y3)(-8x2y2)
16x7y5