Question

Simplify. −3i √-40 

Enter your answer, in simplest radical form, in the box.

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Answer 1

6√10

-3i√-40

-3i^2√40

^

4 * 10

2*2 5*2

-3i^2√2*2*2*5

-6i^2√10

-6(-1)=6

6√10

☺

Answer 2

i have the answer here