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662985
Introduce el texto aquí
Description
Mind Map on Introduce el texto aquí, created by alejandro199pm on 22/03/2014.
Mind Map by
alejandro199pm
, updated more than 1 year ago
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Created by
alejandro199pm
over 10 years ago
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Resource summary
ECUACIONES DE 2º GRADO
Son de la forma ax²+bx+c en la que a es distinto a 0
TIPOS
COMPLETAS: ax²-bx+c=0
INCOMPLETAS:
b=0-> ax²+c=0
Annotations:
2x²+1=0
c=0->ax²+b=0
Annotations:
3x²+x=0
c y b=0-> ax²=2
Annotations:
7x²=0
SE RESUELVEN:
Completas
Se resuelven mediante la formula:
Incompletas
C=0 -> Se resuelve extrayendo factor común de la ecuación ax²+bx=0
x·(ax+b)=0 Que tendría dos opciones: x=0 ó x= ax+b=0=> x= b/a
b=0 por lo que ax²+c=0
ax²= -c => x²= c/a => raíz de a/c
b y c=0 por lo que x²=0
x=0
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