(ii) factorize 9x^2 - y^2 + 4y - 4
1 answer:
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Answer:
Step-by-step explanation:
GIVEN: Tina, Sijil, Kia, vinayash Alisha and shifa are playing game by forming two teams Three players in each team.
TO FIND: how many different ways can they be put into two teams of three players.
SOLUTION:
Total number of players
total teams to be formed
total players in one team
we have to number of ways of selecting players for one team, rest
will go in other team.
Total number of ways of selecting players
Hence total number of different ways in which they can be put into two different teams is