How do you simplify -2x^2y^2(3x^2-xy+4y^2)−2x2y2(3x2−xy+4y2)?
1 Answer
Use distributivity and commutativity of multiplication to get:
Explanation:
Distributivity says that
Commutativity of multiplication says that:
Associativity of multiplication says that:
More generally, we can miss out the brackets and not worry what order multiplication occurs in in a product like:
So for example
Notice that when multiplying powers you add the exponents:
For example,