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

1. anonymous

$\chi =\sqrt{2}\times5\sqrt{10}$

2. anonymous

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)

3. anonymous

so the answer is 5 sqrt 20?

4. anonymous

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