Question

simplify:
see below>>>>>>>>>>>>>>>>

Answer 1

\[\sqrt{-64x^9y^2}\]

Answer 2

did you come up with
\[-8x^3y^5\]

Answer 3

It actually depends on the values of x and y if it is real or not.
But the negative sign here would give you a complex number! :D

So the answer would be
8yx^4√x * i

Understood? :)

Answer 4

possible answers are:
not a real number,
\[-8x^3y^5\]
\[8x^3y^5\]
or
\[-9x^4y^6\]

Answer 5

Not a real number! :)

Answer 6

cool, thanks

Answer 7

There is no real sqrt of a negative number!! :)

Answer 8

Understood right? :)

Answer 9

ok so this one is Not A Real NUmber as well....
\[\sqrt[3]{\frac{ -1 }{ 343 }}\]

Answer 10

right?

Answer 11

No this one is CUBE ROOT!!
So the answer should be -1/7 because (-1/7)^3 = -1/343
And thus it's cube root is -1/7.

Understood? :)

Answer 12

ok got it

Answer 13

:)