+0  
 
0
151
2
avatar+120 

Let r and s be the roots of 3x^2 + 4x + 12 = 0. Find r^2 + s^2.

 May 4, 2020
 #1
avatar
0

By the quadratic formula, the roots are (-2 - \pm 2i sqrt(7))/3, and so r^2 + s^2 = 62/9.

 May 4, 2020
 #2
avatar+120 
0

It said it was wrong...

 May 4, 2020

13 Online Users

avatar