Answer Key 7.1

  1. 9+8b^2
  2. x-5
  3. 5(9x^2-5)
  4. 1+2n^2
  5. 7(8-5p)
  6. 10(5x-8y)
  7. 7ab(1-5a)
  8. 9x^2y^2(3y^3-8x)
  9. 3a^2b(-1+2ab)
  10. 4x^3(2y^2+1)
  11. 5x^2(-1-x-3x^2)\text{ or }-5x^2(1+x+3x^2)
  12. 8n^5(-4n^4+4n+5)
  13. 4(7m^4+10m^3+2)
  14. 2x(-5x^3+10x+6)
  15. 5(6b^9+ab-3a^2)
  16. 3y^2(9y^5+4x+3)
  17. -8a^2b(6b+7a+7a^3)
  18. 5(6m^6+3mn^2-5)
  19. 5x^3y^2z(4x^5z+3x^2+7y)
  20. 3(p+4q-5q^2r^2)
  21. 3(-6n^5+n^3-7n+1)
  22. 3a^2(10a^6+2a^3+9a+7)
  23. -10x^{11}(4+2x-5x^2+5x^3)
  24. 4x^2(-6x^4-x^2+3x+1)
  25. 4mn(-8n^7+m^5+3n^3+4)
  26. 2y^7(-5+3y^3-2y^3x-4yx)

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Intermediate Algebra by Terrance Berg is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License, except where otherwise noted.

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