Question

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 = -1; \(f(x) = 4x^3 - 2x^2 + 2x + 4\); Lower bound?

Yes
No

Answer 1

@dumbcow

Answer 2

yes i gess

Answer 3

synthetic division

-1 | 4 -2 2 4
-4 6 -8
----------------
4 -6 8 -4

remainder is negative so yes its a Lower Bound

Answer 4

Thank you so much! Is that all lower bound is? The remainder is negative?