Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1, and the zeros 4 and 3−i.

Step-by-step explanation:

Given

-- Leading coefficient

Required

Determine the polynomial

Represent the zeros with a and b

Such that

The polynomial is:

However, to solve further: We need to symmetrise over 3-i  and its conjugate

To define a suitable function, the expression becomes

Open bracket

answer: 1 and 3

step-by-step explanation:

5   1/4   miles per hour

step-by-step explanation:

15   3/4 / 3 = 5   1/4