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Segundo examen

Authored by Francisco Ojeda

Mathematics

11th Grade

Used 74+ times

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8 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Resuelve la siguiente ecuación

 4a+82 = 2a+52\frac{4a+8}{2}\ =\ \frac{2a+5}{2}  

1

-1

 32\frac{3}{2}  

 32-\frac{3}{2}  

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Desarrolla el producto notable de (2x+3y)2(2x+3y)^2  

 4x2+5xy+6y24x^2+5xy+6y^2  

 4x2+12xy+9y24x^2+12xy+9y^2  

 5x2+6xy+9y25x^2+6xy+9y^2  

 5x2+6xy+9y25x^2+6xy+9y^2  

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Desarrolla el producto notable de

 (3r+2t)(3r2t)\left(3r+2t\right)\left(3r-2t\right)  

 6r2+4t26r^2+4t^2  

 6r24t26r^2-4t^2  

 9r24t29r^2-4t^2  

 9r4t9r^{ }-4t^{ }  

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Factoriza la siguiente expresión algebraica x24x+4x^2–4x+4  

 (x2)(x+2)(x–2)(x+2)  

 (x+4)(x+4)(x+4)(x+4)  

 (x+2)(x+2)(x+2)(x+2)  

 (x2)(x2)(x–2)(x–2)  

5.

MULTIPLE CHOICE QUESTION

5 mins • 5 pts

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 x2+2x+1x21\frac{x^2+2x+1}{x^2-1}  

Simplifica la siguiente expresión algebraica

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

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

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

 11  

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 x2x219x^2-\frac{x}{2}-\frac{1}{9}  

Encuentra las raíces del polinomio

 x1=16   x2=26x_1=\frac{1}{6}\ \ \ x_2=\frac{2}{6}  

 x1=16   x2=23x_1=-\frac{1}{6}\ \ \ x_2=\frac{2}{3}  

 x1=2   x2=1x_1=2\ \ \ x_2=-1  

 x1=14   x2=13x_1=-\frac{1}{4}\ \ \ x_2=\frac{1}{3}  

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