Profit, revenue, cost

Profit, P(x), is the difference between revenue, R(x), and cost, C(x), so P(x) = R(x) - C(x). Which expression represents P(x), if R(x) = 3x3 + 2x - 1 and C(x) = x4 - x2 + 2x + 3?


P = (Correct answer is: -x^4+3x^3+x^2-4) Wrong answer

Step-by-step explanation:

R=3x3+2x1 C=x4x2+2x+3 P=RC  P=3x3+2x1(x4x2+2x+3) P=3x3+2x1x4+x22x3  P=x4+3x3+x24

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