Question

$$- \frac{ 2 }{ 3 } \sqrt{ 27 } + \frac{ 1 }{ 5 } \sqrt{ 300 } +5 \sqrt{ 3 }$$

Answer

5*sqrt(3)

Solution


Simplify  \(\sqrt{27}\)  to  \(3\sqrt{3}\).
\[-\frac{2}{3}\times 3\sqrt{3}+\frac{1}{5}\sqrt{300}+5\sqrt{3}\]
Simplify  \(\sqrt{300}\)  to  \(10\sqrt{3}\).
\[-\frac{2}{3}\times 3\sqrt{3}+\frac{1}{5}\times 10\sqrt{3}+5\sqrt{3}\]
Cancel \(3\).
\[-2\sqrt{3}+\frac{1}{5}\times 10\sqrt{3}+5\sqrt{3}\]
Use this rule: \(\frac{a}{b} \times \frac{c}{d}=\frac{ac}{bd}\).
\[-2\sqrt{3}+\frac{1\times 10\sqrt{3}}{5}+5\sqrt{3}\]
Simplify  \(1\times 10\sqrt{3}\)  to  \(10\sqrt{3}\).
\[-2\sqrt{3}+\frac{10\sqrt{3}}{5}+5\sqrt{3}\]
Simplify  \(\frac{10\sqrt{3}}{5}\)  to  \(2\sqrt{3}\).
\[-2\sqrt{3}+2\sqrt{3}+5\sqrt{3}\]
Simplify.
\[5\sqrt{3}\]

Decimal Form: 8.660254