Page:Elementary algebra (1896).djvu/369

BINOMIAL THEOREM. 351 Find the value of

34. (x + 2)4+(x-2)4. 35. (x2-a2+x)5-(x2-a^2-x)5. 36. (2 + 1)^6-(2-1)6 37. (2- 1-x)6+(2+ 1-x)6. 38. Find the middle term of (a x+x a)10. 39. Find the middle term of (1-x2 2)14. 40. Find the coefficient of x18 in (x2+3a x)15. 41. Find the coefficient of x18 in (ax4-bx)9. 42. Find the coefficients of x32 and x-17 in (x4-1 x3)15. 43. Find the two middle terms of (3a-a3 6)9.

Write in simplest form

44. The 8th term of (1+2x)-12. 45. The 11th term of (l-2x3)11 2. 46. The 10th term of (l+3a2)16 3 47. The 5th term of (3a - 2b)-1. 48. The (r+1)th term of (1-x)-2. 49. The (r+1)th term of (1-x)-4. 50. The (r+1)th term of (1 + x)1 2. 51. The (r+1)th term of (1 + x)11 3. 52. The 14th term of (2^10-2^7 x)13 2. 53. The 7th term of (3^8 + 6^4 x) 11 4.