Question

Determine which consecutive integers do not have real zeros between them.

x^3+4x^2+3x-1

A (-3,-2)
B (-2,-1)
C (-1,0)
D (0,1)

Answer 1

the answer is c

Explanation:

Answer 2

The answer is option c (-1,0)
Solving the equation you get that the zeros of this are approximately
x ≈ -2.8019
x ≈ -1.4450
x ≈ 0.24698
Then the function has three real roots, but none of them is within the range (-1,0)
Below is a graph of the function.