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expresiones racionales

Authored by Mayra De Sosa

Mathematics

11th Grade

Used 5+ times

expresiones racionales
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10 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 (2x+1)31(1+2x)=13\frac{\left(2x+1\right)}{3}\cdot\frac{1}{\left(1+2x\right)}=\frac{1}{3}  
Es correcta esta simplificación?

SI

NO

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 (x+1)3+55(x+1)=13\frac{\left(x+1\right)}{3}+\frac{5}{5\left(x+1\right)}=\frac{1}{3}                                                         Es correcta esta simplificación?

SI

NO

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 5(x+1)4(x+1)3(x+1)=512\frac{5\left(x+1\right)}{4}\cdot\frac{\left(x+1\right)}{3\left(x+1\right)}=\frac{5}{12}  


Es correcta la simplificación?

SI

NO

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 (x1)(x+3)(x+8)(x1)(x10)(x+8)(x+3)(x+6)\frac{\left(x-1\right)\left(x+3\right)}{\left(x+8\right)\left(x-1\right)}\cdot\frac{\left(x-10\right)\left(x+8\right)}{\left(x+3\right)\left(x+6\right)} 

El resultado del producto es: 

 54\frac{5}{4}  

 x10x+6\frac{x-10}{x+6}  

 x+6x10\frac{x+6}{x-10}  

 x5x+4\frac{x-5}{x+4}  

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 x2x21+3xx+1\frac{x-2}{x^2-1}+\frac{3x}{x+1}    Al sumar el resultado es:

 3x23x2(x+1)(x1)\frac{3x^2-3x-2}{\left(x+1\right)\left(x-1\right)}  

 3x2+x5(x+1)(x1)\frac{3x^2+x-5}{\left(x+1\right)\left(x-1\right)}  

 x2(x+1)(x1)\frac{x-2}{\left(x+1\right)\left(x-1\right)}  

 3x22x2(x+1)(x1)\frac{3x^2-2x-2}{\left(x+1\right)\left(x-1\right)}  

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

  3x+xx16x2=\frac{3}{x}+\frac{x}{x-1}-\frac{6}{x^2}=  


Al operar el resultado es:

 x3+3x29x+6x2(x1)\frac{x^3+3x^2-9x+6}{x^2\left(x-1\right)}  

 x3+3x29x+6x(x1)\frac{x^3+3x^2-9x+6}{x\left(x-1\right)}  

 x3+3x29x+6x(x1)2\frac{x^3+3x^2-9x+6}{x\left(x-1\right)^2}  

 x3+3x29x+6x2(x1)2\frac{x^3+3x^2-9x+6}{x^2\left(x-1\right)^2}  

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Dividir  8y23÷8y3+56y23y2+21y\frac{8y^2}{3}\div\frac{8y^3+56y^2}{3y^2+21y}  

 13y\frac{1}{3y}  

 1y\frac{1}{y}  

 3y3y  

 yy  

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