Productos notables y ley de exponentes

(4x2 – 1)2

• 16x4 – 8x2 + 1

• 16x4 +8x2 -1

• 4x4 – 8x2 + 1

• none

(x + 1) (x – 1)

• x2 – 1

• x2 +1

• none

(2x + 1) (2x – 1)

• = 4x2 + 1

• = 4x2 – 1

• none

(2x + 3)(4x2 – 5)

• = 8x3 - 10x + 12x2 – 15

• = 8x3 - 10x -12x2 + 15

• none

(2x2 – 5)(x2 – 9)

• = 2x4 – 23x2 + 45

• = 2x4 – 23x2 + 15

• none

5y 2 (2y 3 – 5y 2 +9) – 2(4y 2 – 3y)

• = 10y5 – 25y4 + 37y2 + 6y

• = 7y5 – 25y4 + 37y2 + 6y

• none

2a 2 (-3b 3 – 12)

• = -6a 2b 3 – 24a 2

• = -6a 2b 3 – 24a

• none

5x6y 6 (-4x4y)

• = -20x10y 7

• = 20x10y 7

• none

-2a4b 3c 6 (ab2c 5 )

• = -2a 5b 5c 11

• = -2a 5b 5c 10

• none

(1 – 2x)(2 – x)

• = 2 – 5x + 2x2

• = 2 – 5x + 2x3

• none