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productos notables

Authored by Denis Rivas

Mathematics

9th Grade

Used 7+ times

productos notables
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8 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

El producto (x+3)(x+7) es igual a:

(x+a)(x+b)= x2 + (a + b)x + ab

(x+3)(x+7) = x2 + (3+7)x + 3*7

= x2 + 10x + 21

(x+3)(x+7) = x2 + (3+7)x + 3*7

= x2 - 10x + 10

(x+3)(x+7) = x + (3+7)x + 3*7

= x + 10x + 21

2.

MULTIPLE SELECT QUESTION

1 min • 1 pt

El producto (y - 9)(y - 7) es igual a: Selecciones las opciones correctas aplicado a la formula uno de los productos notables.

(y - 9)(y - 7) = y2 + (-9-7)y + (-9)(-7)

= y2 - 16y + 63

(y - 9)(y - 7) = [y+(-9)][y + (-7)]

= y2 + [(-9)+(-7)]y + (-9)(-7)

= y2 - 16y + 63

(y - 9)(y - 7) = [y+(-9)][y + (-7)]

= y2 + [(-9)+(-7)]y + (-9)(-7)

= y2 + 16y + 64

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Sea el producto (2x + 1)(3x+2) este producto aplica al formula 2 de los productos notables, dicho producto es igua a:

(2x + 1)(3x+2) = 2*3*x2 + (2*2 + 2*3)x + 1*2

= 5x2 +(4+6)x +2

= 5x2 + 10x + 2

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(2x + 1)(3x+2) = 2*3*x2 + (2*2 + 1*3)x + 1*2

= 6x2 +(4+3)x +2

= 6x2 + 7x + 2

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

El producto (x + 7)2 es la suma de dos terminos, este producto aplica la formula tres, este producto es igual a:

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(x + 7)2 = x2 + 2*7*x + 72

= x2 + 14x + 49

(x + 7)2 = x2 + (2+7)*x + 2*7

= x2 + 9x + 14

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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APlicando la formula 3 de los productos notables, el producto (x + 3m)2 al cuadrado es igual a:

(x + 3m)2 = x2 + 2*3*m + (3m)2

= x2 + 6m + 9m2

(x + 3m)2 = (x+3m)(x+3m)

= x*x + (3+3)m + 3*3*m*m

= x2 + 6m + 9m2

(x + 3m)2 = x2 + 2*3*m + (3m)2

= x2 + 6mx + 6m

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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El producto (x-9)2 es una cuadrado de la diferencia de dos términos, dicho producto es igual a:

(x-9)2 = x2 + 2*9*x + 92

= x2 +18x +81

(x-9)2 = x2 - 2*9*x + 92

= x2 - 18x +81

(x-9)2 = x2 - 2*9*x - 92

= x2 -18x - 91

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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El producto (x - 4)2 es igual a:

(x - 4)2 = x2 + 2*4*x + 42

= x2 + 8x + 16

(x - 4)2 = x2 - 2*4*x + 42

= x2 - 6x + 8

(x - 4)2 = x2 - 2*4*x + 42

= x2 - 8x + 16

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