Sorry bout that, THIS IS THE NEW ONE PLEASE ANSWER

Which is the completely factored from of xy^3-x^3y

Bill works as a waiter and is keeping track of the tips he ears daily. about how much does bill have to earn in tips on sunday if he wants to average $22 a day? tips by day tips (dollars) monday tuesday wednesday thursday friday saturday $14 $22 $28 $36

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1