Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$3 \sqrt{ 20 } - \sqrt{ 5 }$$

Answer

5*sqrt(5)

Solution


Simplify  \(\sqrt{20}\)  to  \(2\sqrt{5}\).
\[3\times 2\sqrt{5}-\sqrt{5}\]
Simplify  \(3\times 2\sqrt{5}\)  to  \(6\sqrt{5}\).
\[6\sqrt{5}-\sqrt{5}\]
Simplify.
\[5\sqrt{5}\]

Decimal Form: 11.180340

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