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.
-$\mathrm { k } = 3 ; \mathrm { f } ( \mathrm { x } ) = \mathrm { x } ^ { 4 } + 4 \mathrm { x } ^ { 3 } - 3 \mathrm { x } ^ { 2 } - 4 \mathrm { x } + 5$; Upper bound?
A) Yes
B) $\mathrm { No }$

Question

Quizplus · Accepted Answer

Using synthetic division with $k = 3$, we get a sequence of coefficients that do not change sign, indicating that 3 is an upper bound for the real zeros of the function $f(x)$.

Use Synthetic Division to Determine Whether the Number K Is k=3;f(x)=x4+4x3−3x2−4x+5\mathrm { k } = 3 ; \mathrm { f } ( \mathrm { x } ) = \mathrm { x } ^ { 4 } + 4 \mathrm { x } ^ { 3 } - 3 \mathrm { x } ^ { 2 } - 4 \mathrm { x } + 5k=3;f(x)=x4+4x3−3x2−4x+5

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