sqrt(18x^2 Simplify

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Write in simplified form √18×²

Guest Nov 4, 2014

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Best Answer

There are two parts, the number and the variable.

First, the number: √18 = √9·√2 = 3√2

Now, the variable: √x² = |x| (You need absolute value bars because √(-3)² isn't -3, it's +3.

Putting these together: 3√2|x| <--- answer

geno3141 Nov 4, 2014

geno3141 · Answer 1 · 2014-11-04T01:12:52

There are two parts, the number and the variable.

First, the number: √18 = √9·√2 = 3√2

Now, the variable: √x² = |x| (You need absolute value bars because √(-3)² isn't -3, it's +3.

Putting these together: 3√2|x| <--- answer