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Fundamentos D.

Authored by MARIA FERNANDA VALADEZ ROSALES

Mathematics

University

Used 3+ times

Fundamentos D.
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12 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Al resolver la ecuación de segundo grado x2+5x+6x^2+5x+6 , aplicando la fórmula general , los valores de a,b y c respectivamente son

5, 6, 1

1, 5, 6

6, 5, 1

1, 6, 1

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Resuelve la siguiente operación 40÷5×5+6÷2×3+4−5×2÷1040\div5\times5+6\div2\times3+4-5\times2\div10

51

135

48.8

52

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Al reducir la expresión 2ab+a2b−ab+2a3b\frac{2a}{b}+\frac{a}{2b}-\frac{a}{b}+\frac{2a}{3b} , el resultado es:

5a4b\frac{5a}{4b}

4a7b\frac{4a}{7b}

13a6b\frac{13a}{6b}

15a5b\frac{15a}{5b}

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

El valor de la expresión x2+y2z2−w2\frac{x^2+y^2}{z^2}-w^2 , cuando x = 3 , y = −2 , z = 1 y w = −2 es:

9

8

10

11

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Al suprimir paréntesis en: 4x + [x − (2x − 3)]− [5 − 2(1− x)], el resultado es

-x

x

2x

-2x

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

El producto (x − 3)(x + 1) es igual a

x2−3x−2x^2-3x-2

x2−2x−3x^2-2x-3

x2−3x−3x^2-3x-3

x2−2x+3x^2-2x+3

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

El resultado de la división 4x2−4x−32x−3\frac{4x^2-4x-3}{2x-3} es

2x − 2

2x + 2

2x −1

2x +1

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