sangers1959

Verified answer

2/(x-4)-(x+8)/(x²-16)-1/x=2/(x-4)-(x+8)/((x-4)(x+4))-1/x=
(2*(x+4)*x)-(x+8)*x-x²+16)/((x*(x-4)(x+4))=(2x²+8x-x²-8x-x²+16)=16/(x³-16x).