Evaluate
81
Factor
3^{4}
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20.25+\left(4.5\sqrt{3}\right)^{2}
Calculate 4.5 to the power of 2 and get 20.25.
20.25+4.5^{2}\left(\sqrt{3}\right)^{2}
Expand \left(4.5\sqrt{3}\right)^{2}.
20.25+20.25\left(\sqrt{3}\right)^{2}
Calculate 4.5 to the power of 2 and get 20.25.
20.25+20.25\times 3
The square of \sqrt{3} is 3.
20.25+60.75
Multiply 20.25 and 3 to get 60.75.
81
Add 20.25 and 60.75 to get 81.
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