Respuesta :

xKelvin

Answer:

C

Step-by-step explanation:

So we have:

[tex]\sqrt{64}-\sqrt{-289}[/tex]

First, separate out a -1 from the second term:

[tex]=\sqrt{64}-\sqrt{289\cdot -1}\\=\sqrt{64}-\sqrt{-1}(\sqrt{289})[/tex]

Change the square root of -1 to i:

[tex]=\sqrt{64}-i\sqrt{289}[/tex]

The square root of 64 is 8.

And the square root of 289 is 17. Simplify:

[tex]=8-17i[/tex]

So, our answer is C.

And we're done :)

TehGOD

Answer:

since if you simplify you would get 8 as the first term so that could only leave 2 possibilities and you can see that the negative in the -289 would be i so the only possible answer is C

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