

Ecuaciones cuadráticas completas
Presentation
•
Mathematics
•
1st - 3rd Grade
•
Hard
Norberta Gámez
FREE Resource
6 Slides • 0 Questions
1
Ecuaciones cuadráticas completas
Completando el trinomio cuadrado perfecto

2
Factorizar la ecuación
x2+6x-7=0
Paso 1 Despejar las variables x2+6x =7
Paso 2 Dividir todos los términos entre el coeficiente que tiene el término cuadrático 1x2+16x =17
Paso 3 Dividir el coeficiente del término lineal entre dos y el resultado elevarlo a cuadrado x2+6x =7 → 26=32=9
3
x2+6x+9=7+9
Paso 4 Poner el resultado en ambos lados del igual
Paso 5 Escribir como binomios la ecuación ⌈x+3⌉⌈x+3⌉=16
Paso 5 Escribir los binomios como un binomio al cuadrado y despejar "x" ⌈x+3⌉2=16 x+3 =±16 x=±4−3 x1=+4−3=1 x2=−4−3=−7
4
Ejemplo 2 Factorizar 2x2+5x+2=0
Paso 1 2x2+5x =−2
Paso 2 22x2+25= 2−2 x2+25x=−1
Paso 3 25÷12=(45)2=1625
5
Paso 4 x2+25x+1625=−1+1625
Paso 5 (x+45)2=169 x+45=±16 9 x=±43−45
6
x1=43−4 5=−42
x2=−43−45=−48=−2
Ecuaciones cuadráticas completas
Completando el trinomio cuadrado perfecto

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