Question

if a^2-b^2-2ab=81,then (a-b)

Answer 1

Hlo friend.. Cutiepie Here

Here is ur answer :

$(a - b) {}^{2} = {a }^{2} + {b}^{2} - 2ab$

Given

${a}^{2} + {b}^{2} - 2ab = 81$


$(a - b) {}^{2} = 81$


$(a - b) = \sqrt{81}$


$(a - b) = 9$


HOPE IT HELPS YOU....

REGARDS
@sunita