### Home > INT3 > Chapter 9 > Lesson 9.2.4 > Problem 9-140

9-140.

If *x*^{2} + *kx* + 18 is factorable, what are the possible values of *k*? Homework Help ✎

Complete the square by constructing a physical square.

There are 6 answers: +18 and –18 are two of them.

Find the other 4 answers.