How do you evaluate $sqrt(18) - 2sqrt(2)$ ?

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Answer 1 · 2015-11-05T11:17:57

$3sqrt(3) - 2sqrt(2)$

18 has 2 and 9 as factors.

As we all know, 9 is a perfect square, which means that we can extract it from $sqrt(18)$ and it will look like this $sqrt(9)* sqrt(2)$ .

Then, we'll simplify $sqrt(9)$ by finding its square root, which is 3.

The simplified equation is now $3sqrt(3) - 2sqrt(2)$

How do you evaluate sqrt(18) - 2sqrt(2)sqrt(18) - 2sqrt(2)?