[spoiler](x-6/4)(x-7/4)(x-8/4)=x³-21x²/4+73x/8-21/4 (x-96/56)(x-97/56)(x-98/56)=x³-291x²/56+14113x/1568-291/56 [/spoiler]
[spoiler](x-6/4)(x-7/4)(x-8/4)=x³-21x²/4+73x/8-21/4
(x-96/56)(x-97/56)(x-98/56)=x³-291x²/56+14113x/1568-291/56
[/spoiler]