21 \sqrt { 0,25 \cdot 81 } =
Evaluate
94,5
Factor
\frac{7 \cdot 3 ^ {3}}{2} = 94\frac{1}{2} = 94.5
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21\sqrt{20,25}
Multiply 0,25 and 81 to get 20,25.
21\times 4,5
Calculate the square root of 20,25 and get 4,5.
94,5
Multiply 21 and 4,5 to get 94,5.
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