+0  
 
0
648
1
avatar

∆ = b² - 4 a c -b± √∆ x1,2 = ———— 2a

 Dec 16, 2016
 #1
avatar+12530 
+5

∆ = b² - 4 a c -b± √∆ x1,2 = ———— 2a

 

laugh

 Dec 17, 2016

0 Online Users