Factor & Expand Distributive

A symbol for a number we don't know yet. This is usually a letter.

• coefficient
• sum
• variable
• term

A number on its own that has a fixed value.

• constant
• coefficient
• term
• variable

How many coefficients are in expression?

• 1
• 2
• 3
• 4

What are the variables in the following expression?

• 3, 4, 1 and 7
• z, x and y
• + and -
• 15

Find the coefficient in the algebraic expression.

• x
• 4
• 5
• 9

What is the constant in the algebraic expression?
 

• 3
• 2
• -2
• 7

variable

• A number inside parentheses
• A letter in an algebraic expression
• The number before an exopnent
• An expression

coefficient

• In 3x-5, the three is the coefficient
• In 3x-5, the five is the coefficient
• In 3x-5, the x is the coefficient

distributive property

• Where adding and subtracting can be switched
• Multiplying and adding expressions
•  Multiply a sum by multiplying each addend separately and then add the products.

Evaluate the expression 6z - 2t when z = 4 and t=3

• 41
• 1
• 12
• 18