Join the IDNLearn.com community and get your questions answered by knowledgeable individuals. Find reliable solutions to your questions quickly and easily with help from our experienced experts.

Find the roots of the polynomial [tex]\( f(x) = 3x^3 + 12x^2 + 3x - 18 \)[/tex]. What is the value of the largest root?

Sagot :

To find the roots of the polynomial [tex]\( f(x) = 3x^3 + 12x^2 + 3x - 18 \)[/tex], we must solve the equation [tex]\(3x^3 + 12x^2 + 3x - 18 = 0\)[/tex]. Let's go through the steps to identify the roots:

### Step 1: Identify the Polynomial
The polynomial we are working with is:
[tex]\[ f(x) = 3x^3 + 12x^2 + 3x - 18 \][/tex]

### Step 2: Solve for Roots
To find the roots of the polynomial, we need to find the values of [tex]\(x\)[/tex] that satisfy the equation [tex]\(3x^3 + 12x^2 + 3x - 18 = 0\)[/tex]. These are the points where the polynomial intersects the x-axis.

After solving the polynomial equation, we find the roots to be:
[tex]\[ x = -3, x = -2, \text{ and } x = 1 \][/tex]

### Step 3: Determine the Largest Root
Among the roots obtained:
[tex]\[ -3, -2, 1 \][/tex]

The largest value is:
[tex]\[ 1 \][/tex]

### Conclusion
The roots of the polynomial [tex]\( f(x) = 3x^3 + 12x^2 + 3x - 18 \)[/tex] are [tex]\( x = -3 \)[/tex], [tex]\( x = -2 \)[/tex], and [tex]\( x = 1 \)[/tex]. The largest root is:
[tex]\[ 1 \][/tex]