How do you multiply 8sqrt2 * 8sqrt28√2⋅8√2?

1 Answer
Trevor Ryan.
Sep 13, 2015

128

Explanation:

You may simply multiply all the numbers together.
Since multiplication of real numbers is commutative, you may interchange the order to make it easier.

therefore8sqrt2*8sqrt2=8*8*sqrt2*sqrt2
=64*2=128

Another way of looking at it is by using the laws of exponents (indices) and saying that

8sqrt2*8sqrt2=(8sqrt2)^2
=8^2*(sqrt2)^2
=64xx2=128

Related questions
See all questions in Multiplication and Division of Radicals
Impact of this question
1417 views around the world
You can reuse this answer
Creative Commons License