Shannon said she can find the factored form of a trinomial of the form x^2-bx+c from the factors of b. The sum of the factors of b will equal c. Explain Shannon’s error

Itook a better photo of the question so y’all can see it i hope it’s a fine photo

Which of the following represents the zeros of f(x) = 6x3 − 31x2 + 4x + 5? −5, one third , one half 5, − one third , one half 5, one third , − one half 5, one third , one half

Amachine part consists of a half sphere and a cylinder, as shown in the figure. the total volume of the part is π cubic inches.