Question

simplify the radical expression

Answer 1

128

Answer 2

128

Answer 3

sorry hold on

Answer 4

\[\sqrt{128}?\]

Answer 5

lol yes thanks

Answer 6

well lets look for a perfect square root that will go into 128! im going to try 16 so we want to split 128 into 16 * 8 we know 16 is a perfect square and its 4 because 4*4=16 but 8 we can fit one more perfect square into it 4! so lets split 8 into 4*2 now that we have this all we need to do is combine like terms! \[4*2\sqrt{2} = 8\sqrt{2}\]