Write a quadratic function f whose zeros are 6 and 3

What signals you that factoring by grouping is the best method to use when factoring a problem?

How do you create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1?

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?