Sketch the graph of the curve
y=(x-2)(x+1)(x+3)
If expanded you would get a standard cubic
Its x-intercept are (2,0), (-1,0) and (-3,0)
http://www.wolframalpha.com/input/?i=plot+y%3D(x-2)(x%2B1)(x%2B3)
y=(x-2)(x+1)(x+3)
Its x-intercept are (2,0), (-1,0) and (-3,0)
http://www.wolframalpha.com/input/?i=plot+y%3D(x-2)(x%2B1)(x%2B3)