SOLUTION: I also need help with this problem: Use interval notation to indicate the intervals on which the graph of f lies below the x axis where f(x) = x(x+1)(x+3).

Question 1000689: I also need help with this problem:
Use interval notation to indicate the intervals on which the graph of f lies below the x axis where f(x) = x(x+1)(x+3).
Answer by ikleyn(52925) (Show Source): You can put this solution on YOUR website!
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The graph of f lies below the x-axis in the semi-infinite interval (,) and in the interval (-1, 0).

For your convenience the plot of f is below.

Figure. Plot f(x) = x*(x+1)*(x+3)

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