f(x)= x^2(x+4) ( x^2-1), the zeroes & the multiplying of each. B. where the graph crosses or touches the x-axis/, c. number of turning points., d. end behavior.
roots:
0 x2
-4 x1
-1 x1
+1 x1
crosses x-axis where roots have odd multiplicity
touches where roots have even multiplicity
4 turning points
odd degree, so rises left-to-right at ends