Expanding bwackets and simplifying

Expand and simplify

2 (a+b)

• 2ab

• 2a + b

• 2a + 2b

• 2(ab)

4 (d + 2f)

• 4d + 2f

• 4d + 8f

• 4d2f

• 4d2f

Expand using the distributive law

3 (a - 2)

• 3a - 2

• a

• 6a

• 3a - 6

Simplify the expression shown above

• 15a + 12a

• 27a

• 27a²

• 7a + 20

Which of these statements are equivalent to 8x + 24

• 8(x + 24)

• 8(x + 3)

• 4(2x + 3)

• 4(2x + 6)

Expand and simplify:

3a (2a - 4a²b)

• 6a² - 4a²b

• 6a² - 12a³b

• 3a2a - 12a²b

• 6a - 4a²b

The length of a rectangle is (2w + 4). Its width is 5. Write a simplified expression for its area.

• 5 (2w + 4)

• (2w + 4)+ (2w + 4)+(2w + 4)+ (2w + 4)+ (2w + 4)

• (2w + 4) + 5

• 5 + (2w + 4)

Expand using the distributive law and simplify:

7(a + b) + 3a

• 7a + 7b + 3a

• 13a

• 10ab + 3a

• 10a + 7b

Expand and simplify 4(7x + 3).

• 28x + 12

• 28x + 3

• 47x + 12

• 47x + 3

Expand and simplify -3( 2r + 5s).

• -6r - 15s

• -6r + 15s

• -6r - 15

• -6r + 2s