Question

A rectangle with width of 3. There is a vertical line that splits rectangle into two sections with different lengths. One length is x the other is 4.

3(x + 4) represents the area of the rectangle above. Which expression below is equivalent by the Distributive Property?

A. 3x+12
B. (3 + x) + 4
C. (x + 4) ⋅ 3
D. 3x + 4

Answer 1

A 3x+12

Explanation:

this is the only answer that actually uses the distributive property.

This can be shown:

3 can be multiplied by both x and 4 to get 3x+12 (which is using the distributive property)

Answer 2

A 3x+12
this is the only answer that actually uses the distributive property.
This can be shown:
3 can be multiplied by both x and 4 to get 3x+12 (which is using the distributive property)