### Home > A2C > Chapter 9 > Lesson 9.2.2 > Problem 9-90

9-90.

For the following, refer to the Math Note above from Lesson 9.2.2 (pg 460 in the student textbook).

*b*^{2} − 4*ac* = −7; complex roots

*b*^{2} − 4*ac* = 49

Are the roots real or complex?

9-90.

For the following, refer to the Math Note above from Lesson 9.2.2 (pg 460 in the student textbook).

*b*^{2} − 4*ac* = −7; complex roots

*b*^{2} − 4*ac* = 49

Are the roots real or complex?