3 years ago

A polynomial function P(x) with rational coefficients has the given roots. Find two additional roots of P(x)=0.

Mathematics

2 answers:

timofeeve [1]3 years ago

4 0

Answer:

Step-by-step explanation:

If a polynomial function P(x) with rational coefficients has a root z. the so is the complex conjugate of z is a root. (In order to see that, take the complex conjugates of the equation P(x)=0, and note that complex conjugates of rational numbers equal to itself.)

Therefore the complex conjugates of the given roots i and 7+8i , are -i and 7-8i is the required answer.

castortr0y [4]3 years ago

3 0

Answer:

Step-by-step explanation:

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