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FORMULAS 2° Y 3° GRADO
ecuaciones por formula general
FORMULA DE 3° GRADO
a
b
c
2
x2
-
9
x
+
5
=
0
x=
7
+
=
9
2
-
4
2
5
FORMULA 2° GRADO
2
3
5
x
-
15
=
25
x=
9
+
81
-
40
4
5
x
=
25
+
15
5
x
=
40
x=
9
+
41
4
x
=
40
/
5
x=
9
+
6.4
x=
9
-
6.4
x
=
8
4
4
x=
15.4
x2
2.6
4
4
X1=
3.85
x2
1.3
2