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Simplificación de fracciones algebraicas.

Authored by Jhon Jaramillo

Mathematics

9th Grade

Used 7+ times

Simplificación de fracciones algebraicas.
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8 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Al factorizar la expresión

 2a6b+ac3bc2a-6b+ac-3bc  obtenemos

 (a3b)(2+c)\left(a-3b\right)\left(2+c\right)  

 (a+3b)(2+c)\left(a+3b\right)\left(2+c\right)  

 (a3b)(2c)\left(a-3b\right)\left(2-c\right)  

 (a+3b)(2c)\left(a+3b\right)\left(2-c\right)  

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

La expresión simplificada de

 2x29x18x236\frac{2x^2-9x-18}{x^2-36}  es

 2x3x+6\frac{2x-3}{x+6}  

 2x+3x+6\frac{2x+3}{x+6}  

 2x+3x6\frac{2x+3}{x-6}  

 2x3x6\frac{2x-3}{x-6}  

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Los factores de la expresión

 343x3+512y6343x^3+512y^6  son

 (7x+8y2)(49x2+56xy2+64y4)\left(7x+8y^2\right)\left(49x^2+56xy^2+64y^4\right)  

 (7x+8y2)(7x8y2)\left(7x+8y^2\right)\left(7x-8y^2\right)  

 (7x+8y2)(7x+8y2)\left(7x+8y^2\right)\left(7x+8y^2\right)  

 (7x+8y2)(49x256xy2+64y4)\left(7x+8y^2\right)\left(49x^2-56xy^2+64y^4\right)  

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Al simplificar la expresión

 4x225y26x2+15xy\frac{4x^2-25y^2}{6x^2+15xy}  obtenemos

 2x+5y3x\frac{2x+5y}{3x}  

 2x5y3x\frac{2x-5y}{3x}  

 2x5y2x+5y\frac{2x-5y}{2x+5y}  

 2x5yx\frac{2x-5y}{x}  

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Al factorizar la expresión, completamente

 x3+2x2x2x^3+2x^2-x-2  obtenemos

 (x+2)(x1)\left(x+2\right)\left(x-1\right)  

 (x+2)(x21)\left(x+2\right)\left(x^2-1\right)  

 (x+2)(x+1)(x+1)\left(x+2\right)\left(x+1\right)\left(x+1\right)  

 (x+2)(x1)(x+1)\left(x+2\right)\left(x-1\right)\left(x+1\right)  

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Simplificar completamente la expresión

 8x4+xy34x4+4x3y+x2y2\frac{8x^4+xy^3}{4x^4+4x^3y+x^2y^2}  

 4x2+2xy+y2x(2x+y)\frac{4x^2+2xy+y^2}{x\left(2x+y\right)}  

 4x2+2xy+y2(2xy)\frac{4x^2+2xy+y^2}{\left(2x-y\right)}  

 4x2+2xy+y2x(2x+y)\frac{4x^2+2xy+y^2}{x\left(2x+y\right)}  

 4x22xy+y2x(2xy)\frac{4x^2-2xy+y^2}{x\left(2x-y\right)}  

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Simplificar

 m3n+3m2n+9mnm327\frac{m^3n+3m^2n+9mn}{m^3-27}  

 mm3\frac{m}{m-3}  

 nm3\frac{n}{m-3}  

 mnm3\frac{mn}{m-3}  

 mnm2+3mn+9\frac{mn}{m^2+3mn+9}  

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