Date | May 2017 | Marks available | 5 | Reference code | 17M.1.hl.TZ2.1 |
Level | HL only | Paper | 1 | Time zone | TZ2 |
Command term | Find | Question number | 1 | Adapted from | N/A |
Question
Find the term independent of x in the binomial expansion of (2x2+12x3)10.
Markscheme
attempt at binomial expansion, relevant row of Pascal’s triangle or use of general term with binomial coefficient must be seen (M1)
term independent of x is (104)(2x2)6(12x3)4 (or equivalent) (A1)(A1)(A1)
Notes: x’s may be omitted. Also accept (106) or 210.
=840 A1
[5 marks]
Examiners report
[N/A]