Question

Simplify -3i sqrt -40

Enter your answer in simplest radical form

Answer 1

Answer:

$6\sqrt{10}$

Step-by-step explanation:

$-3i\sqrt{-40} \\= -3i\sqrt{(-1)(5)(8)} \\= -3i\sqrt{-1} \sqrt{(5)(2^{3})} \\= -3i(i)(2)\sqrt{(5)(2)} \\= 6\sqrt{10}$