Question 70738
X^(-3)-X^(-2)-X^(-1). When X+3=1
:
x = -2
:
{{{1/x^3 - 1/x^2 - 1/x^1}}}
:
{{{1/-2^3 - 1/-2^2 - 1/-2^1}}}
:
{{{1/-8 - 1/4 - 1/-2}}}
:
{{{-1/8 - 1/4 + 1/2}}} = {{{-1/8 - 2/8 + 4/8}}} = {{{1/8}}}
:
How about this?