Q22. For the polynomial f(x) = 4(x – 5)(x – 6)3, list each real zero and its multiplicity. Determine whether the graph crosses or touches the x-axis at each x-intercept.

   a. 5, multiplicity 1, touches x-axis; 6, multiplicity 3

   b. -5, multiplicity 1, touches x-axis; -6, multiplicity 3

   c. 5, multiplicity 1, crosses x-axis; 6, multiplicity 3, crosses x-axis

   d. -5, multiplicity 1, crosses x-axis; -6, multiplicity 3, crosses x-axis

 

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