8 (7+×)-3× помогите пожалуйста

1)

(х²-8х+16) / (8-2х) =

= (х-4)² / (2*(4-х)) =

= (х-4)(х-4) / (-2*(х-4)) =

= -(х-4) / 2,

2)

(4+в²-4в) / (в²-4) =

= (в²-4в+4) / (в-2)(в+2) =

= (в-2)² / (в-2)(в+2) =

= (в-2)(в-2) / (в-2)(в+2) =

= (в-2) / (в+2)

...15, 16, 14, 15, 13,
...37,46,56,67,79