Define x as a symbolic variable and create the two symbolic expressions S1 = x2(x - 6)

Question:

Define x as a symbolic variable and create the two symbolic expressions
S1 = x2(x - 6) + 4(3x - 2) and S2 = (x + 2)2 - 8x
Use symbolic operations to determine the simplest form of each of following expressions:
(a) S1, · S2
(b) S1/S2
(c) S1 + S2
(d) Use the subs command to evaluate the numerical value of the result from part (c) for x = 5.