Repaso de álgebra 2º ESO

Repaso de álgebra 2º ESO

7th Grade

35 Qs

quiz-placeholder

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Repaso de álgebra 2º ESO

Repaso de álgebra 2º ESO

Assessment

Quiz

Mathematics

7th Grade

Medium

Created by

Ana Cristina Ruiz

Used 13+ times

FREE Resource

35 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Escribe una expresión algebraica para: " Un número menos su mitad más su doble"

 xx2+2xx-\frac{x}{2}+2x 

 x12+2xx-\frac{1}{2}+2x 

 xx2+x2x-\frac{x}{2}+x^2 

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Observa la figura, ¿cuál es la expresión algebraica que nos da el área del rectángulo?

 5x(x+3)=5x2+15x5x\cdot\left(x+3\right)=5x^2+15x 

 5x+x+3=6x+35x+x+3=6x+3 

 (5x)2+(x+3)2\left(5x\right)^2+\left(x+3\right)^2 

 25x+2(x+3)2\cdot5x+2\cdot\left(x+3\right) 

3.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Señala las opciones correctas: En el monomio  x4y3\frac{-x^4y}{3}  

la parte literal es  xyxy  

el coeficiente es  13-\frac{1}{3}  

el coeficiente es  3-3 

el grado es 5

la parte literal es  x4yx^4y  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

¿Cuál es el grado de este monomio  3a2c5-3a^2c^5  ?

 55 

 77 

 22 

 3-3 

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 x27x=-x^2\cdot7x=  

 7x3-7x^3  

 7x27x^2  

 6x36x^3  

No se pueden multiplicar porque no tienen la misma parte literal.

 7x-7x  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 2x33x3x3+4x23x2=2x^3-3x^3-x^3+4x^2-3x^2=  

 4x3x24x^3-x^2  

 2x3+x2-2x^3+x^2  

 x-x  

 x5-x^5  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 x22x3=\frac{x}{2}-\frac{2x}{3}=  

 4x3\frac{4x}{3}  

 x6\frac{x}{6}  

 x3-\frac{x}{3}  

 x6-\frac{x}{6}  

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