Profit, P(x), is the difference between revenue, R(x), and cost, C(x), so P(x) = R(x) - CC). Which expression represents P(x), if R(I) = 224 – 3x3 + 2x – 1 and C(x) = 24 – + 22 + 3?
3.14 - 31" - 22 + 4x + 2
** _ 3.7? _ 22 +42 + 2
I _ 313 + x² - 4
208_32
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29. explain the error a student found the product of 8 × 10 6 and 5 × 10 9 to be 4 × 10 15 . what is the error? what is the correct product?

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