Three friends, Jessa, Tyree, and Ben, are collecting canned food for a culinary skills class. Their canned food collection goal is represented by the expression 8x^2 - 4xy + 8. The friends have already collected the following number of cans:
Jessa: 5xy + 17
Tyree: x^2
Ben: 4x^2 - 8
Part A: Write an expression to represent the amount of canned food collected so far by the three friends. Show all your work. (5 points)
Part B: Write an expression that represents the number of cans the friends still need to collect to meet their goal. Show all your work. (5 points)