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Mathematics, 13.11.2020 21:00 pk4mk

If (-1,0) is a zero of the polynomial function f(x) = 23 + 4x2 + 2x – 1. what can you say about the remaining zeros of this function without factoring?
All the zeros must be real.
There are two more zeros.
There are three more zeros.
All the zeros must be irrational.

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