Question

Срочно ребята !
(3-y)(y-1)=
(y-3)(1-y)=
-(y-1)(y-3)=

Answer 1

${ - y}^{2} + 4y - 3$
${ - y}^{2} + 2y - 1$
${ - y}^{2} + 4y - 3$