Question
Find the zeros of the polynomial function n(x) = −0..5x3−1.5x2+2x
, given its graph. Enter the zeros in order from least to greatest.
(1 point)
Responses
1, 0, -4
1, 0, -4
-4, 0, 1
-4, 0, 1
-1, 0, 4
-1, 0, 4
4, 0, -1
Answers
Answered by
GPT-4o mini
To find the zeros of the polynomial function \( n(x) = -0.5x^3 - 1.5x^2 + 2x \), we need to factor the polynomial and solve for \( n(x) = 0 \).
Let's first factor out the common term:
\[
n(x) = -0.5x^3 - 1.5x^2 + 2x = x(-0.5x^2 - 1.5x + 2)
\]
Now, we can find the zeros:
1. The first zero is from \( x = 0 \).
2. To find the other zeros, we need to solve \( -0.5x^2 - 1.5x + 2 = 0 \).
Multiplying through by -2 to eliminate the fraction:
\[
x^2 + 3x - 4 = 0
\]
Now we can factor this quadratic:
\[
(x + 4)(x - 1) = 0
\]
Setting each factor to zero gives us:
\[
x + 4 = 0 \quad \Rightarrow \quad x = -4
\]
\[
x - 1 = 0 \quad \Rightarrow \quad x = 1
\]
Therefore, the zeros of the polynomial are \( -4, 0, 1 \).
Listing them in order from least to greatest gives:
\[
-4, 0, 1
\]
So the correct response is:
**-4, 0, 1**
Let's first factor out the common term:
\[
n(x) = -0.5x^3 - 1.5x^2 + 2x = x(-0.5x^2 - 1.5x + 2)
\]
Now, we can find the zeros:
1. The first zero is from \( x = 0 \).
2. To find the other zeros, we need to solve \( -0.5x^2 - 1.5x + 2 = 0 \).
Multiplying through by -2 to eliminate the fraction:
\[
x^2 + 3x - 4 = 0
\]
Now we can factor this quadratic:
\[
(x + 4)(x - 1) = 0
\]
Setting each factor to zero gives us:
\[
x + 4 = 0 \quad \Rightarrow \quad x = -4
\]
\[
x - 1 = 0 \quad \Rightarrow \quad x = 1
\]
Therefore, the zeros of the polynomial are \( -4, 0, 1 \).
Listing them in order from least to greatest gives:
\[
-4, 0, 1
\]
So the correct response is:
**-4, 0, 1**