What is the following sum? Assume x greater-than-or-equal-to 0 and y greater-than-or-equal-to 0

StartRoot x squared y cubed EndRoot + 2 StartRoot x cubed y Superscript 4 Baseline EndRoot + x y StartRoot y EndRoot

x squared y squared StartRoot y EndRoot minus 2 x y squared StartRoot x EndRoot

2 x y StartRoot y EndRoot + 2 x y squared StartRoot x EndRoot

4 x y StartRoot x Superscript 5 Baseline y Superscript 8 Baseline EndRoot

2 x y StartRoot x y EndRoot
I found it, its c

Select the correct answer and solve for y

Exercise: counting committees 0.0/2.0 puntos (calificable) we start with a pool of n people. a chaired committee consists of k≥1 members, out of whom one member is designated as the chairperson. the expression k(nk) can be interpreted as the number of possible chaired committees with k members. this is because we have (nk) choices for the k members, and once the members are chosen, there are then k choices for the chairperson. thus, c=∑k=1nk(nk) is the total number of possible chaired committees of any size. find the value of c (as a function of n ) by thinking about a different way of forming a chaired committee: first choose the chairperson, then choose the other members of the committee. the answer is of the form c=(α+nβ)2γn+δ. what are the values of α , β , γ , and δ ?

If f(x) = 5х – 2 and g(x) = 2х + 1, find (f – g)(x).