TRINOMIO CUADRADO PERFECTO Y VALOR ABSOLUTO
Enviado por dianaamccartney • 19 de Febrero de 2016 • Tarea • 428 Palabras (2 Páginas) • 875 Visitas
[pic 1][pic 2]
Matemáticas
Etapa 1
Actividad Integradora
Fecha: 17/02/2016
TRINOMIO CUADRADO PERFECTO Y VALOR ABSOLUTO
x2 10x + 25 = 49[pic 3]
= [pic 4][pic 5]
x5 = 7[pic 6]
|x ̶ 5| =7
x ̶ 5 = 7 x ̶ 5 = ̶ 7
x = 7 + 5 x = 7 + 5[pic 7]
x = 12 x = 2[pic 8]
= 81[pic 9]
= [pic 10][pic 11]
x + 7 = 9
|x + 7| = 9
x + 7= 9 x + 7= 9[pic 12]
x = 9 7 x= [pic 13][pic 14]
Fórmula general
6x2 17x 3 =0[pic 15][pic 16]
a = 6
b = -17
-b = 17
c= -3
d= b2 – 4ac
d= -172 – 4 (6) (- 3)
d= 289 + 72
d= 361
x=
x= 17 ± / 2 (6)
x= 17 ± 19 / 12
x= 17 + 19/ 12 x= 17 – 19 / 12
x= 18.58 x= 15.41[pic 17][pic 18]
7x2 + 10x + 3 = 0
a= 7
b= 10
-b= -10
c= 3
d= b2 – 4ac
d= 102 – 4(7)(3)
d= 100 – 84
d= 16
x=
x= -10 ± / 2(7)
x= -10 ± 4 / 14[pic 19][pic 20]
x= -10 + 4 /14 x= -10 -4 /14
x= -9.714 x= -10.2857
Factorización
x2 + 2x – 15 =0
(x – 3) (x + 5) =0
x – 3=0 x + 5 = 0
x = - 3 x = 5
x2 – x + 12 =0
(x + 3) (x – 4) =0
x + 3= 0 x – 4 = 0
x = - 3 x = 4
...