start square root -16 end square root i cubed minus 4 i squared all over 1 minus start square root -4 end square root.
i is an imaginary number.
So the expression is as follows...?
. . . . .
(Isn't this stuff just a
bear to format?)
I think your steps were as follows:
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
Of course, this is not proper form, so then you
rationalized the denominator by multiplying top and bottom by the conjugate of
. What did you do for this step, and what did you get?