Algebra Review 1

Which demonstrates the commutative property?

• 2+(3+7)=(2+3)+7

• 5(1) = 5

• 9 + 0 = 9

• 8 + 7 = 7 + 8

5(6+4) = 5(6) + 5(4) is an example of

• the order of operations

• the distributive property

• the commutative property

• the distributive property

The identity property says that...

• any number times 1 is itself

• any number plus 0 is itself

• any number times 1 OR plus 0 is itself

• any number times 0 is 0

4(y + 9) =

• 4y + 9

• 36y

• 4y + 36

• 40y

(h - 5)3

• 3h - 15

• h - 15

• -12h

• 15 - 3h

Combine the like terms to simplify the expression:

3x + y + 6 + 4y + 7x + 11

• 15xy + 17

• 10x + 5y + 17

• 32xy

• 10x + 4y + 17

Combine the like terms to simplify the expression.

x² + 5x - 3y - 2 + 3x² - 5x + y - 6

• 4x² - 10x - 2y - 8

• 3x² - 3y - 8

• 4x² + 10x - 8

• 4x² - 2y - 8

Distribute then combine like terms to simplify.

12m + 8(m + 10) + m² + 10

• m² + 20m + 90

• m² + 20m + 20

• 21m² + 90

• 21m² + 20

Distribute and combine like terms to simplify.

2k² + 5k + 4(k - 3) - k² +9

• k² + 9k + 6

• k² + 9k - 3

• 3k² + 9k + 6

• 3k² + 9k - 3

Evaluate when n = 3.

8n

• 83

• 11

• 5

• 24