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Guía diagnostica Noveno

Authored by Jero Santos

Mathematics

9th Grade

Used 18+ times

Guía diagnostica Noveno
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10 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Resolver por tanteo  2x27x+6=02x^2-7x+6=0  

 x = 32 ; x =2x\ =\ \frac{3}{2}\ ;\ x\ =2  

 x = 23 ; x = 4x\ =\ \frac{2}{3}\ ;\ x\ =\ 4  

 x=13 ; x = 4x=\frac{1}{3}\ ;\ x\ =\ 4  

 x = 2 ; x 12x\ =\ 2\ ;\ x\ \frac{1}{2}  

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 x26x+9=0x^2-6x+9=0  tiene soluciones:

Reales y diferentes

Reales e iguales

Reales e imaginarias

Raices ceros

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 2x2+3x6=0-2x^2+3x-6=0  tiene soluciones:

ReAlas y diferentes

Reales e iguales

Reales e imaginarias

No tiene solución

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Las raices de  x24x=0x^2-4x=0  son:

 x2 , 4xx^2\ ,\ -4x  

 x=0 , x=4x=0\ ,\ x=4  

 x=x , x=4xx=x\ ,\ x=4x  

Soluciones imaginarias

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Las raices de  4x236=04x^2-36=0  

 x=0x=0  

 x=4 , x=36x=4\ ,\ x=36  

 x=2 , x=0x=2\ ,\ x=0  

 x=3 , x=3x=-3\ ,\ x=3  

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Las raices de  x25x+24=0x^2-5x+24=0  

 x=8 , x=3x=8\ ,\ x=3  

 x=3x=-3  

Soluciones imaginarias

 x=0 , x=24x=0\ ,\ x=24  

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Es el discriminante de una ecuación cuadrática

x=b±b24ac2a2x=\frac{-b\pm\sqrt{b^2-4ac}}{2a^2}

b24ac\sqrt{b^2-4ac}

b24acb^2-4ac

b24ac2a\frac{b^2-4ac}{2a}

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