Correct answer only ! i cannot retake the degree of the polynomial function f(x) is 4. the roots of the equation f(x)=0 are −8 , −5 , 1, and 2. which graph could be the graph of f(x) ?

Look like the bottom left one to me.

Step-by-step explanation:

If you look at the root, each one is passed through in the bottom left graph. Hope this makes sense.

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form

salary

step-by-step explanation: