Question

PLEASE HELP: Use synthetic division to determine whether the number k is an upper or lower bound (as specified) for the real zeros of the function f.

k = 4; f(x) = 2x^3 - 2x^2 - 3x - 5; Lower bound?

Answer 1

@inkyvoyd @mathmate

Answer 2

? Cubic polynomial. Infinite in both directions and must have one real root. What lower bound were you finding? It may have local minima or maxima, but no global.

Answer 3

it's asking for the bounds on the zeros, not the whole function

Answer 4

have you tried dividing the function using k = 4 as a zero?

Answer 5

no, and how would i even do that

Answer 6

@Vocaloid

Answer 7

use synthetic division where -4 is your divisor