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Ec. cuadráticas

Authored by Walter Araujo

Mathematics

1st Grade

CCSS covered

Ec. cuadráticas
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14 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Los valores de x1 y x2 en la siguiente ecuación x2 - 4x + 5 = 0 son:

x1= 6 ; x2 = 2

x1 = 5 ; x2 = 1

no tiene solución real

x1 = 2 ; x2 = - 2

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

¿Cuál es el discriminante de la ecuación 7x2 - 13x -1 = 0

-197

141

197

41

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

El discriminante de la ecuación 4x2 - 12x + 9 = 0

288

144

0

-144

4.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

El discriminante de la ecuación 3x2 + 2x = 8 es...

100

-92

102

-100

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Al resolver la ecuación  x28x+16=0x^2-8x+16=0  la solución es:

4

-4

 ±4\pm4  

NDLA

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Al resolver la ecuación cuadrática x2 + 2x + 1=0; sus racies son:

x1 = 1; x2 = 1

x1 = 2; x2 = 1

x1 = -2; x2 = 1

x1 = 2; x2 = -1

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Al resolver la ecuación cuadrática x2 - 7x + 10=0; sus racies son:

x1 = 5 y x2 = 2

x1 = -5 y x2 = -2

x1 = 5 y x2 = -2

x1 = -5 y x2 = 2

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