Foundations of Algebra

Expand the expression:

5 ( -2x + 3)

• -10x + 15

• 10x - 15

• 3x + 8

• -10x + 3

Expand the expressions using the distributive property:

-2( 2.5x - 6)

• -0.5x + 12

• 5x -12

• -5x +12

• -5x - 6

Which expression matches:
The sum of 6 and 5 doubled

• 2 x 6 + 5
• 2 x (6 + 5)
• 6 + (5 x 2)

What step would I do second?
 (4 - 2) x 9 + 7 =

• multiplication
• subtraction
• addition
• dividing

What does the (E) in PEMDAS mean?

• experience
• exponents
• examples
• evidence

(3 + 4)² - 32 

• 7
• 112
• 17
• -7

2 + 7 ⋅ 5

• 37
• 45
• 32
• 23

12 ÷ 3 x 4
What do you do first?

• 3x4
• 12÷4
• 12÷3

How do you write this in exponent form?
4 * 4 * 4 * 4 * 4 * 4 * 4 * 4

• 4⁷
• 65,536
• 4⁸
• 7⁴

(3+4) x (3+5)

• 50
• 54
• 56
• 48