What's the answer?- 4 \sqrt{15 * - √(3) }

Question

What's the answer?
`- 4 \sqrt{15 * - √(3) }`

Answer 1

`\begin{gathered} -4\sqrt[]{15}-\sqrt[]{3}=-4\sqrt[]{5\cdot3}-\sqrt[]{3} \\ =(-4\sqrt[]{5}-1)\sqrt[]{3} \end{gathered}`

In decimal form this is equal to -17.22.