What is the value of the underlined digit 5,678.321

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

17. a researcher measures three variables, x, y, and z for each individual in a sample of n = 20. the pearson correlations for this sample are rxy = 0.6, rxz = 0.4, and ryz = 0.7. a. find the partial correlation between x and y, holding z constant. b. find the partial correlation between x and z, holding y constant. (hint: simply switch the labels for the variables y and z to correspond with the labels in the equation.) gravetter, frederick j. statistics for the behavioral sciences (p. 526). cengage learning. kindle edition.

Use the zero product property to find the solutions to the equation (x+2)(x+3)=12