Question

What are the possible number of positive, negative, and complex zeros of f(x) = 2x^3 – 5x^2 – 6x + 4 ?

Answer 1

You can try factoring and then solving the factors.

Answer 2

I know that there are 2 or 0 positive zeros, and 1 negative zero. I have no idea how to get the complex zeros, I really would like to know how rather than just the answer of how there are 0 or 2 complex zeros.

Answer 3

complex solutions always come in pairs

Answer 4

so max number of complex roots is 2 but it's not garaunteed that there will be complex roots

Answer 5

I tried to do factoring, and I got:
x^2(2x - 5) - 2(3x - 2)
So, would that make: (x^2-2)(2x-5)(3x-2)?

Answer 6

Okay, thank you Mr. Me!