Distributive
From ACT Wiki
Maths.
Multiplication is distributive over addition
The distributive property of multiplication over addition means that brackets within expressions can be 'multiplied out' when the brackets contain additions.
Example
3 x (4 + 5) gives the same result as:
(3 x 4) + (3 x 5).
In the first case:
3 x (4 + 5)
= 3 x 9
= 27
In the second case:
(3 x 4) + (3 x 5)
= 12 + 15
= 27
