Suppose that f(x) = 3iV4x?² + 2 (A) Find all critical values of f. If there are no critical values, enter -1000, If there are more than one, enter them separated by commas. Critical value(s) = (B) Use interval notation to indicate where f(x) is increasing. Note: When using interval notation in WeBWorK, you use I for oo, -I for -o0, and U for the union symbol. If there are no values that satisfy the required condition, then enter "{)" without the quotation marks. Increasing: (C) Use interval notation to indicate where f(x) is decreasing. Decreasing:

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