Okay I'm DESPERATE.

Can somebody please tell me what

n^3-64 divided by n-4 is?

And for x/x+2 - 4/x-2 - 1
is the answer 2(-3x+2)/(x-2)(x+2)

see above.

helpppppppppppppp me i am failing

your fat

(3x3+13x2-9+5)+(x+5)