Course 3: Unit 2 Review

Which expression is equivalent to the model shown below?

• 6x + 5

• x + 3

• -x + 3

• -x - 1

After distribution, how many terms have the variable x in the expression 4(x - 1) + x + 5?

• 3

• 4

• 5

• 2

Which model correctly demonstrates the Distributive Property?

• 3(1 + 2) = 1(2)

• 3(1 + 2) = 3(1) + 3(2)

• 3(1 + 2) = 3(1) + 3(1)

• 3(1 + 2) = 3(1) + 3(2)

Simplify the given expression: -3d + 2(1 - d) + 7d

• 2d + 2

• 3d - 2

• 3d - 1

• 4d + 2

Which expressions correctly demonstrate the Distributive Property? (Select three correct answers)

• 3(7 - f) = 21 - f

• 3(4 - 3h) = 12 - 9h

• 1/2(16e + 4) = 8e + 2

• -(a - b) = -a + b

• 1/5(10p + 30) = 5p + 6

What is the simplified form of 5x + 7x - 8 + 4?

• A) 12x - 4

• B) 12x + 4

• C) 12x - 8

• D) 12x + 8

They gave you the answer first, and are asking you what the problem should look like at the end.

So look at p(4 + 2.5n)

What would you multiply everything inside the parenthesis to get the answer 16 + 10n?

Mathematical Equivalence

ON

After using the distributive property to expand, what is the coefficient of b?
-9(-5a - 3b)

Mathematical Equivalence

OFF

Match the following each expression with what it would be AFTER you distribute - draw a line connecting the matching expressions

• 6x - 18

• -6(x - 3)

• -6x - 18

• 6(x + 3)

• -6x + 18

• -6(x + 3)

• 6x + 18

• 6(x - 3)

• Distributive
• Commutative
• Associative