boedipscope boedipscope

04-08-2017
Mathematics

contestada

The quadratic equation x2 + mx + q = 0, where m and q are real numbers, has the complex root a + bi.?

Respuesta :

04-08-2017

Remember the quadratic formula determinant?
If b^2 -4ac < 0, a complex root exists.

So for this problem, m^2 - 4q is the determinant, and if less than 0, is complex.

So a=-m/2 and b=(1/2)SQRT(m^2 - 4q)

Answer Link

Otras preguntas

Select all that apply. As a result of the Great Leap Forward, _____. -members of the Red Guard were sent to prison -there was a power shift in favor of conse

There are two identical figures with all sides of equal length. The combined perimeter of the figures is 80 centimeters. What shape are the figures? What is the

What creates irony in a work of literature? a. the skill of the writer b. the contradiction between appearance and reality c. the puns, wordplay, and other h

Which of the following is not a type of speech Shakespeare uses to develop character

A field whose data type is ____ can store an OLE object, which is an object linked to or embedded in the table.

Alan wants to bake blueberry muffins and bran muffins for the school bake sale. For a tray of blueberry muffins, Alan uses 1/3 cup of oil and 2 eggs. For a tray

Trade and commerce between civilizations helped to _____. exchange new ideas spread languages share new inventions make people rich

A tale of two cities Part 1 Which best explains the development of Madame Defarge? A.Madame Defarge decides to help Lucie after first hesitating about i

18-20 are these correct Last ones!!!!!

2q + 18 = -5q - 3 What does q equal?