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.
-$k = - 3 ; f ( x ) = 4 x ^ { 3 } - 5 x ^ { 2 } + 2 x + 4 ;$ Lower bound?

Question

Quizplus · Accepted Answer

Synthetic division shows that when k = -3, all coefficients in the quotient and remainder are non-positive, indicating -3 is a lower bound.

Use Synthetic Division to Determine Whether the Number K Is k=−3;f(x)=4x3−5x2+2x+4;k = - 3 ; f ( x ) = 4 x ^ { 3 } - 5 x ^ { 2 } + 2 x + 4 ;k=−3;f(x)=4x3−5x2+2x+4;

Use Synthetic Division to Determine Whether the Number K Is $k = - 3 ; f ( x ) = 4 x ^ { 3 } - 5 x ^ { 2 } + 2 x + 4 ;$