Algebra Quiz

5(a + 6)

• 5a + 6
• a + 30
• 5a + 30
• 5a - 30

3(2c - 5)

• 6c - 15
• 6c + 15
• 6c + 15
• -6c - 15

-3(2c - 5)

• -6c - 15
• -6c + 15
• 6c + 15
• 6c - 15

Simplify the expression: -8 + 2(x + 4)

• 2x

• 2x - 4

• 2x + 12

• 2x + 4

7(n+8)-8

• 7n
• 7n+56-56
• 7n+56-8
• 7n+48

Which of the following is the correct expansion of:
a(a - 10)?

• a² - 10a
• 2a - 10
• 2a² - 10
• a - 10a²

(x + 5)(x + 4)

• x² + 9x + 20
• x² + 20x + 9
• x² + x + 20
• x² + 20

Simplify  $-12k+9k^2-9k-12k^2$  

•  $12k-3k^2$  

•  $-3k^2-21k$  

•  $21k-k^2$  

•  $3k^2-12k$  

Expand and simplify $-8\left(5e-5\right)$  

•  $40e-40$  

•  $40e+40$  

•  $-40e+40$  

•  $-40e-40$