Question

Simplify:
2(sqrt -24 )- (sqrt -54 )

Answer 1

havent u learned it yet

Answer 2

can you explain with out giving me an answer please

Answer 3

sqrt of 24 is whaT?

Answer 4

That's -24, right?

Answer 5

Let's assume it is and use i to get rid of the minus signs (if they are really positive just lose the i after).

And while we are at it, lets split the roots up into smaller ones to get

\[i (2\sqrt{6}\sqrt{4} - \sqrt{6}\sqrt{9})\]

You can do it now, right?

Answer 6

radical -24 = 2i radical 6
radical -54 = 3i radical 6

2(2i radical 6 ) - ( 3i radical 6 ) = 2 (i radical 6 ( 2-3 ) = -2i radical 6

Answer 7

Um, it's just -i root6 isn't it?

Answer 8

I mean i root 6