Question

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

Answer 1

3y-3-y^2+y=4y-y^2-3
y-y^2-3+3y=4y-y^2-3
-y^2+3y+y-3=4y-y^2-3

Answer 2

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