(s-1)(s+1)-5(s-1)

how do you factor the (s-1) out

At his new job, jeremiah can choose an hourly rate of $9 plus a $50 weekly bonus for opening the store, or an hourly rate of $10 per hour with no opening bonus. the equations model his salary options. y = 9x + 50 y = 10x

Asphere has a diameter of 10 in. what is the volume of the sphere?

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?