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Find the profit function [tex]P(x)[/tex] for a corporation for the years 2004-2012, given the revenue function [tex]R(x)[/tex] and the cost function [tex]C(x)[/tex] for the years 2004-2012.

[tex]
\[
\begin{align*}
R(x) &= -0.0665x^3 + 1.822x^2 - 12.45x + 116.2 \\
C(x) &= -0.0223x^3 + 0.834x^2 - 6.74x + 99.1
\end{align*}
\]
[/tex]

[tex]P(x) =[/tex] [tex]\square[/tex] (Simplify your answer.)

Answer :

To find the profit function [tex]\( P(x) \)[/tex], we need to subtract the cost function [tex]\( C(x) \)[/tex] from the revenue function [tex]\( R(x) \)[/tex]. Let's go through the steps of simplifying this expression.

1. Write Down the Revenue and Cost Functions:

The revenue function [tex]\( R(x) \)[/tex] is given by:
[tex]\[
R(x) = -0.0665x^3 + 1.822x^2 - 12.45x + 116.2
\][/tex]

The cost function [tex]\( C(x) \)[/tex] is given by:
[tex]\[
C(x) = -0.0223x^3 + 0.834x^2 - 6.74x + 99.1
\][/tex]

2. Subtract the Cost Function from the Revenue Function:

The profit function [tex]\( P(x) \)[/tex] is calculated as:
[tex]\[
P(x) = R(x) - C(x)
\][/tex]

Plugging in the expressions for [tex]\( R(x) \)[/tex] and [tex]\( C(x) \)[/tex], we have:
[tex]\[
P(x) = (-0.0665x^3 + 1.822x^2 - 12.45x + 116.2) - (-0.0223x^3 + 0.834x^2 - 6.74x + 99.1)
\][/tex]

3. Simplify the Expression:

When we subtract the two polynomials, we handle each term separately:

- For the [tex]\( x^3 \)[/tex] terms:
[tex]\[
-0.0665x^3 - (-0.0223x^3) = -0.0665x^3 + 0.0223x^3 = -0.0442x^3
\][/tex]

- For the [tex]\( x^2 \)[/tex] terms:
[tex]\[
1.822x^2 - 0.834x^2 = 0.988x^2
\][/tex]

- For the [tex]\( x \)[/tex] terms:
[tex]\[
-12.45x + 6.74x = -5.71x
\][/tex]

- For the constant terms:
[tex]\[
116.2 - 99.1 = 17.1
\][/tex]

4. Combine All the Terms:

Putting all the simplified terms together, the profit function [tex]\( P(x) \)[/tex] is:
[tex]\[
P(x) = -0.0442x^3 + 0.988x^2 - 5.71x + 17.1
\][/tex]

Thus, the simplified profit function for the years 2004-2012 is:
[tex]\[ P(x) = -0.0442x^3 + 0.988x^2 - 5.71x + 17.1 \][/tex]

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