Expressions, Equations, and Functions

Write an algebraic expression for 3 times x squared minus 4 times x

• 3(2x) – 4x

• 4 – 3x

• 3x²-4x

• 3(x²-4x)

Write a verbal expression for 3n – 8.

• the product of 3, n, and 8

• 3 times n less than 8

• 8 less than the product of 3 and n

• n minus 8 times 3

Evaluate 4 + 5 • 7 – 1.

• 139

• 15

• 34

• 38

Evaluate 3(16 – 9) + 12 ÷ 3

• 33

• 25

• 41

• 28

Evaluate m² + mtp if m=3, t=4, and p=7.

• 93

• 87

• 100

• 23

Which equation illustrates the Additive Identity Property

• 8(9 + 0) = 8(9)

• 4(0) = 0

• 8 • 1 = 8

• $\frac{1}{4}\cdot4=1$

Evaluate 16 • 1 + 4(18 ÷ 2 – 9).

• 20

• 0

• 16

• 80

Simplify  $7x^2+10x^2+5y^3$  

•  $22x^2y^3$  

•  $17x^2+5y^3$  

•  $22x^4+y^3$  

•  $17x^4y^3+5$  

Simplify 2(7n + 5m – 3m)

• 14n +2m

• 9n + 7m

• 9n + m

• 14n + 4m

What property to you have to use to simplify 2(7n + 5m – 3m)

• Commutative Property

• Distributive Property

• Associative Property

• Symmetric Property