12 3 4 5 6 7 8 9 10 which of these are opposing forces in the outsiders by s. e. hinton? paul newman and sodapop west-side rich kids and east-side greasers ponyboy and his second-oldest brother two-bit mathews and darry

The answer is:

West-side rich kids and East-Side greasers.

In Hinton's The Outsiders, there are two gangs who are opposed to each other: the Greasers, to refer to all the boys living on the East-Side, which, in turn, the region was considered to be the poor side of town. Moreover, they were called greasers because they used long and greased hair. On the other hand, the Socs, a term which was a short for Socials (because they came from upper-middle-class families), were the rival gang, also considered as "the jet set, the West-Side rich kids" in the story.