So I'm having trouble with imaginary numbers...
here's the problem
Evaluate the following square root expression
√(-8x^9)
the ^ represents superscript so its x to the 9th power
this is my process so far
√(-8x^9)
= i√(8x^9)
= 2i√(2x^9)
So I'm having trouble with imaginary numbers...
here's the problem
Evaluate the following square root expression
√(-8x^9)
the ^ represents superscript so its x to the 9th power
this is my process so far
√(-8x^9)
= i√(8x^9)
= 2i√(2x^9)
I fully realize that you have posted in the pre-algebra/algebra forum.
That said, I have some real concerns with you question.
Many of us do not like the notation $\displaystyle \sqrt{-8x^9}$ if $\displaystyle x$ is a complex number.
Now if $\displaystyle x$ is a real number, then there are additional problems.
For example: if $\displaystyle x\le 0$ then $\displaystyle \sqrt{-8x^9}$ is a real number.
If $\displaystyle x>0$ then $\displaystyle \sqrt{-8x^9}=2x^4\sqrt{2x}~i$
All "bets" are off if $\displaystyle x$ is a complex number!