Building Skills

  1. 9. 120

  2. 11. 12

  3. 13. 15

  4. 15. 1

  5. 17. 7

  6. 19. 1

  7. 21. 4950

  8. 23. 210

  9. 25. (x+2)4=x4+8x3+24x2+32x+16

  10. 27. (x2)5=x510x4+40x380x2+80x32

  11. 29. (23x)3=27x3+54x236x+8

  12. 31. (2x+3y)4=16x4+96x3y+216x2y2+216xy3+81y4

  13. 33. (x+1)4=x4+4x3+6x2+4x+1

  14. 35. (x1)5=x55x4+10x310x2+5x1

  15. 37. (y3)3=y39y2+27y27

  16. 39. (x+y)6=x6+6x5y+15x4y2+20x3y3+15x2y4+6xy5+y6

  17. 41. (1+3y)5=243y5+405y4+270y3+90y2+15y+1

  18. 43. (2x+1)4=16x4+32x3+24x2+8x+1

  19. 45. (x2y)3=x36x2y+12xy28y3

  20. 47. (2x+y)4=16x4+32x3y+24x2y2+8xy3+y4

  21. 49. (x2+2)7=1128x7+732x6+218x5+352x4 +70x3+168x2+224x+128

  22. 51. (a213)4=a843a6+23a4427a2+181

  23. 53. (1x+y)3=y3+3y2x+3yx2+1x3

  24. 55. 36

  25. 57. 1512

  26. 59. 314,928

  27. 61. 126

  28. 63. 120x7y3

  29. 65. 112, 640x3

  30. 67. 16, 128x6y2

  31. 69. 704,000x2y9

  32. 71. 84x3

  33. 73. 280x3y4

  34. 75. 405x8y5

  35. 77. 2.48832

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