Question

if x-1/x=4 then find x^4-1/x^7​

Answer 1

Answer:

$\frac{x - 1}{x} = 4$

=>3x+1=0

=>x=–1/3

To find:

$\frac{ {x}^{4} - 1 }{ {x}^{7} }$

=>$\frac{ (\frac{ - 1}{3} ) {}^{4} - 1 }{( \frac{ - 1}{3}) {}^{7} }$

On solving ,

=2160

Answer 2

Answer:

This is wht I could do for now.......will think of another way as well