Suma i resta monomis
  • 1. 3x2 + 4x2 - 5x2 =
A) 3x2
B) x2
C) 2x2
  • 2. 6x3 - 2x3 + 3x3 =
A) 6x3
B) 8x3
C) 7x3
  • 3. -2x4 + 6x4 + 3x4 -5x4 =
A) 4x4
B) 6x4
C) 2x4
  • 4. 7x - 9x - 2x - 4x =
A) -8x
B) -10x
C) 10x
  • 5. 4xy2 + 3xy2 - 2x2y =
A) 7xy2-2x2y
B) 5xy2
C) 5x2y
  • 6. 3x - (8x - 5) + (7 - 2x) =
A) - 7x + 12
B) -3x + 2
C) -3x - 2
  • 7. x5 + 4x5 – 7x5 =
A) 2x2
B) - 2x2
C) 12x2
  • 8. ab3 + 3ab3 – 5ab3 + 6ab3 – 4ab3 =
A) ab3
B) -ab3
C) 0
  • 9. 2y2 + 5y2 – 3y2 =
A) 10y2
B) -4y2
C) 4y2
  • 10. 3x2y – 6x2y + 5x2y =
A) 2x2y
B) 14x2y
C) - 14x2y
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