Respostas

2013-11-14T17:50:24-02:00
A = 1 b = - 2.a.m.o c = a².m².o²-t².e²   x = - ( - 2.a.m.o)   ±  √ ( - 2.a.m.o) ²  - 4 .( 1 . a².m².o²-t².e²)   =                                   2   x =  2.a.m.o  ±  √ 4 a².m².o²- 4a².m².o² + 4t².e²  =                                  2 x = 2.a.m.o  ± 4t².e²                           2 X = = 2.a.m.o  ± 2t.e                   2 x’ = a.m.o - 2t.e   x” = a.m.o + 2t.e