What are the possible number of positive real, negative real, and complex zeros of. f (x) = 4x3 + x2 + 10x - 14.

1 sign change when x=1, there is 1 positve root

2 sign changes when x = - 1. there are 2 possible negative roots

since complex roots come in 2s, there might be 0 negative roots, and 2 complex roots

close, but we cant say for sure that there are 0 or 2 negative roots; or 0 or 2 complex roots

Positive Real: 1

Negative Real: 0, or 2

Complex: 0, or 2