\frac{ 15(3 \sqrt{ 2 } + \sqrt{ 6 } }{ 2 }
Evaluate
\frac{15\left(\sqrt{6}+3\sqrt{2}\right)}{2}\approx 50.190978224
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\frac{45\sqrt{2}+15\sqrt{6}}{2}
Use the distributive property to multiply 15 by 3\sqrt{2}+\sqrt{6}.
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