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f(x) = x ^(3) + 6x ^(2) + 8xfind the zeros. is itx= 0,-2,-4x= 0,2,4x= 2,4x= -2,-4

User Mangerlahn
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1 Answer

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Given the function:


f(x)=x^3+6x^2+8x

Let's find the zeros of the function.

To find the zeros of the function, take the following steps.

Step 1:

Set the function to zero


x^3+6x^2+8x=0

Step 2:

Factor the left side of the equation

Factor x out:


x(x^2+6x+8)=0_{}

Now factor using the AC method:


x(x+2)(x+4)=0

We have the factors:

x, x+2, x+4

Step 3:

Equate the individual factors to zero.

Thus, we have:


\begin{gathered} x=0 \\ \\ x+2=0 \\ \\ x+4=0 \end{gathered}

Step 4:

Solve each equation for x to get the zeros

• x = 0

• x + 2 = 0

Subtract 2 from both sides:

x + 2 - 2 = 0 - 2

x = -2

• x + 4 = 0

Subtract 4 from both sides:

x + 4 - 4 = 0 - 4

x = -4

Therefore, the zeros of the function are:

x = 0, -2, -4

ANSWER:


x=0,-2,-4

User Marykay
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