Question

can some one show me the steps for ^-3 multiplied by ^-128

Answer 1

Is this the problem:

x^-3 multiplied by x^-128 ?

I do not see a variable in the problem you wrote.

Answer 2

\[\sqrt{-3} \times \sqrt{-128}\]

Answer 3

Okay. ^ means square root.

Answer 4

yes.

Answer 5

√(-3) * √(-128) =

√(-1) * √3 * √(-1) * √128 =

Answer 6

i √3 * i * √128 where i = √(-1).

Answer 7

= i^2 * √3 * √128

= (-1) * √3 * √128

Questions so far?

Answer 8

nope

Answer 9

= (-1) * √3 * √(4*4*2*2*2)

= (-1) √3 * (4 * 2)√(2)

= - √3 * 8√2

Answer 10

= -8√6

Answer 11

Questions?

Answer 12

so the answer doesn't have and i in it meaning. I got \[8i \sqrt{6}\]

Answer 13

With complex numbers that are not real, you have to get the negative out of the square root before you multiply the radicands.

Answer 14

i^2 = -1

Answer 15

i c. thanks so much.

Answer 16

Glad to help.