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001_Polinomios 1 (2º ESO)
  • 1. Sean P(x)= 3x3-5x2+6 y Q(x)=12x4-6x3+7x2-4. Calcula P(x)+Q(x)
A) 12x4-3x3+2x2-2
B) 12x4-3x3+2x2+2
C) 12x4+3x3-2x2+2
D) 12x4+3x3+2x2+2
  • 2. Sean P(x)= 3x3-5x2+6 y Q(x)=12x4-6x3+7x2-4. Calcula P(x)-Q(x)
A) -12x4+9x3-12x2+10
B) -12x4-9x3+12x2+10
C) 12x4-9x3+12x2-10
D) 12x4+9x3-12x2-10
  • 3. Sean P(x)= 3x3-5x2+6. Calcula 2·P(x)
A) -6x3+10x2+12
B) -6x3-10x2-12
C) 6x3-10x2+12
D) 6x3+10x2-12
  • 4. Sean P(x)= 3x3-5x2+6 y Q(x)=12x4-6x3+7x2-4. Calcula Q(x)-P(x)
A) -12x4+9x3+12x2-10
B) -12x4+9x3-12x2+10
C) 12x4-9x3+12x2-10
D) 12x4-9x3-12x2+10
  • 5. Sean P(x)= 5x4-6x3+8x2-12x+4 y Q(x)=9x4-3x3-6x2+8x-12. Calcula P(x)+Q(x)
A) 4x4-3x3+14x2-20x+16
B) -4x4+3x3-14x2+20x-16
C) -14x4+9x3-2x2+4x+8
D) 14x4-9x3+2x2-4x-8
  • 6. Sean P(x)= 5x4-6x3+8x2-12x+4 y Q(x)=9x4-3x3-6x2+8x-12. Calcula P(x)-Q(x)
A) 4x4-3x3+14x2-20x+16
B) -4x4-3x3+14x2-20x+16
C) 14x4-9x3+2x2-4x-8
D) -14x4+9x3-2x2+4x+8
  • 7. Sean P(x)= 5x4-6x3+8x2-12x+4 y Q(x)=9x4-3x3-6x2+8x-12. Calcula Q(x)+P(x)
A) -4x4+3x3-14x2+20x-16
B) 4x4-3x3+14x2-20x+16
C) -14x4+9x3-2x2+4x+8
D) 14x4-9x3+2x2-4x-8
  • 8. Sean P(x)= 5x4-6x3+8x2-12x+4. Calcula el opuesto de P(x)
A) -5x4-6x3-8x2-12x-4
B) -5x4+6x3-8x2+12x-4
C) -5x4-6x3+8x2-12x+4
D) 5x4+6x3+8x2+12x+4
  • 9. Sean P(x)=2x3-5x2+6 y Q(x)=-x3+4x2-2x. Calcula 2P(x)-Q(x)
A) 5x3-14x2+2x+12
B) 3x3-9x2+2x+6
C) 5x3+14x2-2x+12
D) x3-x2-2x+6
  • 10. Sean P(x)=2x3-5x2+6 y Q(x)=-x3+4x2-2x. Calcula P(x)-3Q(x)
A) x3-x2-2x+6
B) -5x3+17x2-6x-6
C) 5x3-17x2+6x+6
D) 3x3-9x2+2x+6
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