Question 1

6-3+8-5+10=

Accepted Answer

16

Answer

17

Answer

14

Answer

15

Question 2

(-6a+8b+c)+(2a-3b-c)+(5a+8b-c)

Accepted Answer

a+13b-c

Answer

2a+13b+c

Answer

2a-13b

Answer

a+13b

Question 3

(8ab-2b+4a)-(7b-5a-6ab)

Accepted Answer

9a+14ab-9b

Answer

-9a-14ab+7b

Answer

9a-14ab+5b

Answer

-9a+14ab-5b

Question 4

(-6a^2 b)(-ab^6)

Accepted Answer

6a^3 b^7

Answer

-6a^2 -ab^6

Answer

6a^3 b^6

Answer

-6a^-1 b^-5

Question 5

(a^n)[a^(n+4)]

Accepted Answer

a^2n+4

Answer

a^2n-4

Answer

2a^2n+4

Answer

2a^n+4

Question 6

¿Es 8 una solución para la siguiente ecuación?          x+3=0

Accepted Answer

No

Answer

Si

Answer

No lo sé, tú dime

Answer

Depende

Question 7

(-108a^7 b^6 c^8) / (-20b^6 c^8)

Accepted Answer

5.4a^7

Answer

-4.5a^7

Answer

3.4a^-7

Answer

4.5a^7

Question 8

(5a^m b^ n c) / (-6a^3 b^4 c)

Accepted Answer

-5/6 a^m-3 b^n-4

Answer

5/6 a^m-3 b^n+4

Answer

-5/6 a^m+3 b^n-4

Answer

5/6 a^m-3 b^-n+4

Question 9

3x+[-5x-(x+3)]=8x+(-5x-9)

Accepted Answer

X=1

Answer

X=2

Answer

X=-2

Answer

X=-1

Question 10

(a^5 -26a^3 b^2 +8ab^4 -b^5 +6) - (8a^4 b +a^3 b^2 +15a^2 b^3 +45ab^4 +8)

Accepted Answer

a^5 -8a^4 b -27a^3 b^2 +15a^2 b^3 +53ab^4 -b^5 +14

Answer

-a^5 -8a^4 b -27a^-3 b^2 +15a^2 b^3 +53ab^4 -b^5 -14

Answer

a^5 +8a^2 b -27a^3 b^2 +15a^2 b^3 +53ab^4 -b^5 +14

Answer

a^5 -8a^4 b +27a^3 b^2 -15a^2 b^3 +53ab^4 -b^4 -14

Question 11

(2a+3b) + (6b-4c) + (-a+8c)

Accepted Answer

a+9b+4c

Answer

a+9b-4c

Answer

-a-9b+4c

Answer

a-9b+4c

Question 12

(a^8 -3a^6 b^2 +a^4 b^4 -3a^2 b^6 +b^8)(-5a^3 y^2)

Accepted Answer

-5a^11 y^2 +15a^9 b^2 y^2 -5a^7 b^4 y^2 +15a^5 b^6 y^2 -5a^3 b^8 y^2

Answer

-5a^5 y^2 +15a^3 b^2 y^2 -5a^4 b^4 y^2 +15ab^6 y^2 -5ab^8 y^2

Answer

5a^11 y^2 +15a^9 b^2 y^2 +5a^7 b^4 y^2 +15a^5 b^6 y^2 +5a^3 b^8 y^2

Answer

-5a^11 y^2 -15a^9 b^2 y^2 -5a^7 b^4 y^2 -15a^5 b^6 y^2 -5a^3 b^8 y^2

Question 13

La fracción -14/1 es...

Accepted Answer

Racional

Answer

Irracional

Answer

Natural

Answer

Ninguna de las anteriores

Question 14

4.75 es...

Accepted Answer

Racional

Answer

Natural

Answer

Entero

Answer

Irracional

Question 15

Resuelve las ecuaciones y selecciona el inciso con el número más grande a)-5+6-1    b)10-13-5 c)-1+5+4

Accepted Answer

c

Answer

Ninguno de los anteriores

Answer

a

Answer

b

Question 16

(10ab+9m-15n)+(17ab-8m-5n)+(-20ab+5m+n)

Accepted Answer

7ab+6m-19n

Answer

-7ab-4m+21n

Answer

7ab-6m-21n

Answer

-7ab+6m+19

Question 17

(-x^2)(-2x^3 +1)

Accepted Answer

2x^5 -x^2

Answer

3x^5 +x

Answer

3x^5 -x

Answer

-2x^5 +x^2

Question 18

(14x^3 yz^2 m^5)/(-2x^2 y^3)

Accepted Answer

-7xy^2 z^2 m^5

Answer

7x^5 y^3 z^2 m^5

Answer

-7xy^4 z^2 m^5

Answer

-7x^5 y^3 z^2 m^5

Question 19

Pitágoras vivió 85 años, si nació en 580 a.C., ¿en qué año murió?

Accepted Answer

495 a.C.

Answer

665 d.C

Answer

665 a.C.

Answer

495 d.C.

Question 20

El dueño de una carnicería paga los a carniceros un sueldo base de 4000 más una comisión de 40 por cada kilo de carne que vendan. Expresa la función

Accepted Answer

y=40x+4000

Answer

y=4000+(40/x)

Answer

y=4000x+40

Answer

y=4040x

Question 21

En la ecuación 15+12x-5+x=8x-25, ¿cuánto vale x?

Accepted Answer

x=-7

Answer

x=7

Answer

x=-5

Answer

x=5

Question 22

(5a^x-2 b^y+3 c^2)/(2a^n b^z c^3)

Accepted Answer

2.5a^x-n-2 b^y-z+3 c^-1

Answer

2.5a^x+n b^y-z c^-1

Answer

10a^x-n b^y-z

Answer

7a^x+n b^y+z c^5

Question 23

(30m^6 n^8)/(5n^3)

Accepted Answer

6m^6 n^5

Answer

6mn^5

Answer

6m^3 n^8

Answer

6m^6 n^11

Question 24

(24x^4)(6y^3)

Accepted Answer

144x^4 y^3

Answer

-4x^3 y^4

Answer

4x^4 y^3

Answer

4xy

Question 25

Resuelve el siguiente sistema numérico.    8x-12y=-37. 20y+15x=15

Accepted Answer

x=-1.77    y=1.9

Answer

x=-2 y=-2.5

Answer

x=1.77     y=-1.9

Answer

x=-2      y=2.5

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