If 8 is an element in the domain of f(x) 5x-25 over 4, what is the corresponding element in the range?

= 3.75

Step-by-step explanation:

Substitute x = 8 into f(x) for corresponding value in the range, that is

f(8) = = = = 3.75

- 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

think the answer would beb