Question

Solve the polynomial equation by factoring and check the solutions graphically.
xSuperscript 4minus8xcubedplus12xsquaredequals0
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Part 1
The solutions are
  
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Answers

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Answered by GPT-4o mini
To solve the polynomial equation \( x^4 - 8x^3 + 12x^2 = 0 \) by factoring, we first factor out the greatest common factor (GCF), which is \( x^2 \):

\[
x^2(x^2 - 8x + 12) = 0
\]

Next, we set each factor equal to zero:

1. For \( x^2 = 0 \):
\[
x = 0
\]

2. For the quadratic part \( x^2 - 8x + 12 = 0 \), we can factor it further:
\[
x^2 - 8x + 12 = (x - 6)(x - 2)
\]

Now we set each factor to zero:

- From \( x - 6 = 0 \):
\[
x = 6
\]

- From \( x - 2 = 0 \):
\[
x = 2
\]

So, the complete set of solutions to the equation \( x^4 - 8x^3 + 12x^2 = 0 \) is:

\[
x = 0, 2, 6
\]

Thus, the solutions are:

\[
\boxed{0, 2, 6}
\]

### Checking Graphically

To check the solutions graphically, you can plot the function \( f(x) = x^4 - 8x^3 + 12x^2 \) and look for the points where the graph intersects the x-axis. The x-intercepts represent the solutions to the equation. The graph should confirm that there are roots at \( x = 0 \), \( x = 2 \), and \( x = 6 \).

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