SOLUTION: Okay, The answer to my equation is sqrt 90. But it has to be simplified. So I have to factor out 90. so I have 2*3*3*5, so is my answer 3 sqrt 10??
Yes.
The way to check that is to use a calculator to approximate
it with a decimal:
Find with a calculator, you'll get 9.486832981
Then find , you'll also get 9.48632981
Then you know you are right.
Edwin