In the xy-coordinate plane, the graph of the equation y = 2x^2-12x-32 has zeros at x=d and x=e, where d> e. the graph has a minimum at (f,-50). what are the values of d, e, and f?

Summary statistics given for independent simple random samples from two populations. use the pooled t-interval procedure to obtain specified confidence interval. x1=71.6, s1=3.9, n1=11, x2=67.9, s2=3.4, n2=9 determine a 99% confidence level.