For example: 18√18
2007-02-20 00:23:47 · 3 answers · asked by Anonymous in Education & Reference ➔ Homework Help
Factor the quantity under the radical and pull out the perfect squares. In your case:
18 = 2 * 3^2
You have one perfect square. The square root of 3^2 = 3, of course, so
18 sqrt(18) = 18 * 3 * sqrt(2) = 54 sqrt(2)
2007-02-20 00:27:36 · answer #1 · answered by Anonymous · 2⤊ 0⤋
18 sqrt of 18
just simplify inside the radical and find the highest square which in this case is 9 so 18 sqrt of 9 x 2 , the sqrt of 9 is 3 so the answer is 54 sqrt of 2
2007-02-20 02:08:48 · answer #2 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
think of the biggest perfect square in the number inside the radical...in this case...
18â3^2 x 2
then you multiply it to the number outside
18 x 3â2
and you get your answer which is...
54â2
2007-02-20 01:31:31 · answer #3 · answered by ? 2 · 0⤊ 0⤋