\sqrt { 18 ^ { 2 } + 3,6 ^ { 2 } }
Evaluate
12\sqrt{3}\approx 20.784609691
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\sqrt{324+3\times 6^{2}}
Calculate 18 to the power of 2 and get 324.
\sqrt{324+3\times 36}
Calculate 6 to the power of 2 and get 36.
\sqrt{324+108}
Multiply 3 and 36 to get 108.
\sqrt{432}
Add 324 and 108 to get 432.
12\sqrt{3}
Factor 432=12^{2}\times 3. Rewrite the square root of the product \sqrt{12^{2}\times 3} as the product of square roots \sqrt{12^{2}}\sqrt{3}. Take the square root of 12^{2}.
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