105,690 views
36 votes
36 votes
Which polynomial function has zeros when x= -5, 2, 8

User Ferdinand Torggler
by
3.0k points

2 Answers

17 votes
17 votes

Answer:

The polynomial function can be written as:

f(x) = (x + 5)(x - 2)(x - 8)

This polynomial function will have zeros at x = -5, 2, and 8, and will have no other zeros.

Explanation:

A polynomial function has zeros at x = -5, 2, 8 if and only if the polynomial can be written in the form (x + 5)(x - 2)(x - 8) = 0.

The general form of a polynomial function is:

f(x) = ax^n + bx^(n-1) + cx^(n-2) + ... + dx + e

where n is the degree of the polynomial and a, b, c, ..., d, e are constants.

For the polynomial function with zeros at x = -5, 2, 8, the degree is 3 (since there are 3 distinct zeros) and the constants are a = 1, b = 0, c = 0, d = 0, and e = 0.

User Joe Bathelt
by
2.8k points
17 votes
17 votes
91.7()29)91()2882)226282(2722811)19191
User Mike McCoy
by
3.0k points