Question

what is x if x is = to the square root of 2 times 5 square root of 10

Answer 1

\[\chi =\sqrt{2}\times5\sqrt{10}\]

Answer 2

So this is like saying sqrt(2)*5*sqrt(10). Multiply the sqrt(2) and sqrt(10) first. You can put them back under the square root together:
sqrt(2)*sqrt(10)=sqrt(20)

Answer 3

so the answer is 5 sqrt 20?

Answer 4

sqrt(20) can be simplified. 20=4*5