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Op. combinades polinomis 2
Contributed by: Senar Gonzàlez
(Original author: Galvis Bellés)
  • 1. (x4-2x+3)-x·(x3+3)
A) -5x-3
B) 3 - 5x
C) -2x4-2x
D) x4-5x+3
  • 2. 3x·(x-1)-x·(2-4x)
A) -x2-x
B) -x2-5x
C) 7x2-x
D) 7x2-5x
  • 3. (2x2 + 3)·(x – 1) – x·(x – 2)
A) 2x3 – 3x2 + 5x – 3
B) 2x3 – -3x2 - 5x + 3
C) 2x3 – 3x4 + 5x2 – 3
D) 2x3 – 6x2 + 10x – 9
  • 4. (x2 – 5x + 3)·(x2 – x) – x(x3 – 3)
A) –6x3 + 8x2
B) –1–6x6 + 8x4
C) –12x3 + 16x2
D) 6x3 - 8x2
  • 5. x·(x2 – 5) – 3x2·(x + 2) – 7·(x2 + 1)
A) 3x4 – 5x – 7
B) –2x3 – 13x2 – 5x – 7
C) x2 – 5x – 7
D) -13x2 + 5x +7
  • 6. 5x2·(–3x + 1) – x·(2x – 3x2) – 2·3x
A) –12x3 + 3x2 – 6x
B) 12x3 - 3x2 + 6x
C) –12x6 + 3x4 – 6x
D) –12x3 + 9x2 – 6x
  • 7. (3x+2)2-4
A) 3x2+6x
B) 3x2+6x+4
C) 9x2+12x
D) 9x2+12x+4
  • 8. 5·(x2-5)2-x2·(5x2-50)-100
A) 25·(2x2 + 9)
B) 25·(2x2 - 9)
C) 25
D) 225
  • 9. (5x-3)·(5x+3)-25x2
A) 50x2 - 9
B) 9
C) 50x2 + 9
D) -9
  • 10. 4·(x-1)2-3·(2-2x-x2)
A) 7x2-2x-2
B) 7x2-2x+2
C) 7x2-10x+2
D) 7x2-10x-2
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