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Expresiones algebraicas y valor numérico

Authored by Alba Sanchez

Mathematics

8th Grade

CCSS covered

Used 24+ times

Expresiones algebraicas y valor numérico
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15 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

La suma de dos edades.

x + y

xy

2x + y

(x+y)/2

Tags

CCSS.6.EE.B.6

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Si a = -4; entonces

 10(a+7)10\cdot\left(a+7\right)  

121

-30

30

0

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Considere la expresión algebraica:

 14ab2a214\cdot a\cdot b-2\cdot a^2 

 Si   a=2, b=3a=2,\ b=3  , entonces el valor numérico de la expresión algebraica corresponde a

76

80

82

34

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Encuentra el valor numérico de la expresión, si x = 2:

 P(x)=3x4+2x21P\left(x\right)=3x^4+2x^2-1  

50

45

55

47

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

El valor numérico para x= -1 es

4

3

-7

-15

Tags

CCSS.6.EE.A.2C

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Calcula el valor numérico de la expresión:
-3X + 5
Cuando X = 3

14
-14
-4
+4

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Sustituya en la expresión algebraica el valor dado para la variable y realice las operaciones indicadas
 x10\frac{x}{10}  Si x=5

0.1

0.5

0.2

0.3

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