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Identidades notables
Contributed by: Andrés Jobacho
  • 1. (x-2)²
A) x²+4x-4
B) 2x-4
C) x²-4
D) x²-4x+4
  • 2. (x-6)(x+6)
A) x²-36
B) x²+12
C) 2x-12
D) x²-12
  • 3. (3-y)²
A) y²-6y+6
B) y²-6y+9
C) y²+6y+9
D) y²-6y-6
  • 4. (x+8)²
A) x²+16x+64
B) x²-16x+64
C) x²+16x+16
D) x²+64
  • 5. (2x-5)(2x+5)
A) 4x²-25
B) 4x²+25
C) 2x²-25
D) 2x²-10
  • 6. (5x+3)²
A) 25x²+30x+9
B) 25x²-30x+9
C) 10x²+30+6
D) 25x²+9
  • 7. (x²+3x)(x²-3x)
A) x4-3x2
B) x4+3x2
C) 2x²-6x
D) x4-9x2
  • 8. (3x²-7)²
A) 3x4-49
B) 9x4-42x2+49
C) 9x4-49
D) 3x4-42x2+49
  • 9. (2a-3b)²
A) 4a²+9b²-12ab
B) 2a²-3b²
C) 4a²-9b²
D) 4a²+9b²-12a²b²
  • 10. (x²+1)²
A) 2x2+1
B) x4+2x2+1
C) 2x2+1+2x
D) x4+1
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