Well, Here's a quick review!
The Distributive Property is a property of numbers that ties the operation of addition (or subtraction) and multiplication together.
It says that for ANY numbers a, b and c,
. For those used to multiplications without the multiplication sign, 
.The same property applies when there is subtraction instead of addition: a*(b-c) = a*b - a*c.
How it is used: The distributive property is used when something in parentheses ( ) is multiplied by something, or, in reverse, when you need to take some common multiplier OUT of the parentheses.
Example:
Taking x INTO parentheses:
Taking a OUT of parentheses:
.You've read it, now how about some Khan Academy help!?!
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