Question

factorise: 1 - a square + 2ab - b square

Answer 1

HOPE IT HELPS MARK AS BRAINLIEST

Answer 2

Answer:

$1 - {a}^{2} + 2ab - {b}^{2} \\ 1 - ( {a } ^{2} - 2ab + {b}^{2} ) \\ 1 - {(a - b)}^{2}$