TEST: Expressions, Equations, & Properties

Definition of a term.

• Parts of an expression separated by + and - signs
• The number multiplied times a product of variables or powers of variables in a term
• A term or expression with no variables
• The numbers or expressions that when multiplied produce a given product

Definition of a constant

• Parts of an expression separated by + and - signs
• The number multiplied times a product of variables or powers of variables in a term
• A term or expression with no variables
• The numbers or expressions that when multiplied produce a given product

Definition of a factor.

• Parts of an expression separated by + and - signs
• The number multiplied times a product of variables or powers of variables in a term
• A term or expression with no variables
• The numbers or expressions that when multiplied produce a given product

Definition of a coefficient.

• Parts of an expression separated by + and - signs
• The number multiplied times a product of variables or powers of variables in a term
• A term or expression with no variables
• The numbers or expressions that when multiplied produce a given product

In the following expression, which numbers are coefficients?
18x⁷ + 4x³ - 11x² + 9

• 18, 4, -11, 9
• 18, 4, -11
• 7, 3, 2
• 18, 4, 11, 2

How many terms are in the following expression?
2x³ - 7 + 11x⁸ - 4x⁵

• 1
• 2
• 3
• 4

 $3a^2+7a-9\ \ let\ a\ =-3$  
Evaluate this expression

(a)  

3(2x+1)+2(x-4)

• 8x-3
• 8x+11
• 4x-5
• 8x-5

n/2 = 5

• 10

• 2

• 5

• 20

Solve the equation:
3(x - 1) = 2x + 9

• x = 12
• no solution
• x = 10
• x = 6