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write the expansion 1.(2p+2q-3r)all squre 2.(2x-ysquare)all cube 3.(2/3 x-5/3 z)all cube |
| Expand the following using the given formula. 1. (a+b+c)2=a2+b2+c2+2ab+2bc+2ac 2.(a-b)3=a3-3a2b+3ab2-b3 3.(a-b)3=a3-3a2b+3ab2-b3 |
