Question

1. f(x) = (x + 2)(x − 9)(6 − x)

a. Find the intervals of x where f(x) > 0.

b. Find the intervals of x where f(x) < 0.

2. f(x) = (x − 2)2(x + 1)3

a. Find the intervals of x where f(x) > 0.

b. Find the intervals of x where f(x) < 0.

 

 

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