For ploynomial, write every real zero and its multiplicity. Compute whether the graph crosses or touches x-axis at each x-intercept.
f(x)=3(x+3)(x-1)^2
a) -3, multiplicity 1, touches x-axis; 1, multiplicity 2, crosses x-axis
b) 3, multiplicity 1, touches x-axis; -1, multiplicity 2, crosses x-axis
c) 3, multiplicity 1, crosses x axis; -1, multiplicity 2, touches x-axis
d) -3, multiplicity 1, crosses x-axis; 1, multiplicity 2, touches x-axis