Question 1205626
{{{-1/(1-b^2)}}}


{{{(-1/-1)(-1/(1-b^2))}}}, {{{multiplication_of_entire_rational_expression_by_1}}}

{{{(-1*-1)/(-1(1-b^2))}}}

{{{1/(-1+b^2)}}}

{{{1/(b^2-1)}}}{{{commutative}}}{{{property}}}{{{within}}}{{{denominator}}}