college algebra
posted by zach w .
find the intercept of the equation
(x+6)^2(x1)^2 does this crosses the x axis the smaller or touches the x axis or does it touch at the larger x intercept or crosses the larger

college algebra 
Steve
y is never negative
since y=0 at x=6 and x=1, it touches the xaxis there, but does not cross it.
the graph just touches the xaxis at roots of even multiplicity, since it does not change sign there.
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