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PRUEBA MENSUAL #1 3B

Authored by María González

Mathematics

9th Grade

Used 1+ times

PRUEBA MENSUAL #1   3B
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12 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 81-\sqrt{81}  

9

-9

Ninguna de la anteriores

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 ax+bxa\sqrt{x}+b\sqrt{x}  se dice que son radicales semejantes porque

tienen el mismo índice

tienen la misma cantidad subradical

tienen el mismo índice y cantidad subradical

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 mnxnm\sqrt{n}-x\sqrt{n}  Al resolver, nos queda

  x(mn)\ x\left(m-\sqrt{n}\right)  

 n(m+n)\sqrt{n}\left(m+n\right)  

 n(mx)\sqrt{n}\left(m-x\right)  

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 83(253)-8\sqrt{3}\cdot\left(\sqrt{2}-5\sqrt{3}\right)  si aplicamos propiedad distributiva, nos queda 

 1126112\sqrt{6}  

 163+1216\sqrt{3}+12  

 86+120-8\sqrt{6}+120  

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 (2x33)2\left(2\sqrt{x}-3\sqrt{3}\right)^2  si aplicas producto notable te queda

 4x+153x4x+15\sqrt{3x}  

 4x123x+274x-12\sqrt{3x}+27  

 31x123x31x-12\sqrt{3x}  

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 (2y+3x)(3x2y)\left(2\sqrt{y}+3\sqrt{x}\right)\cdot\left(3\sqrt{x}-2\sqrt{y}\right)  

9x-4y

 9x24y29x^2-4y^2  

4y-9x

 3x22y23x^2-2y^2  

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 8+27.827\sqrt{8+2\sqrt{7}}.\sqrt{8-2\sqrt{7}}  nos queda

 232\sqrt{3}  

 51\sqrt{51}  

6

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