SOLUTION: What is the square root of 18? But it has to be simplifed. My teacher said i had to do something with factors to get the answer but he lost me.

Question 219094: What is the square root of 18? But it has to be simplifed. My teacher said i had to do something with factors to get the answer but he lost me.
Found 2 solutions by josmiceli, solver91311:
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!

answer
check:

Square both sides
(error due to rounding off)

Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

Derive the prime factorization of the radicand.

So:

Because:

But

So:

John

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