11X1 T14 07 sum & difference of powers (2010)

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  • 1. Sum & Difference OfPowers

2. Sum & Difference OfPowers a n b n a b a n1 a n2b a n3b 2 a 2b n3 ab n2 b n1 3. Sum & Difference OfPowers a n b n a b a n1 a n2b a n3b 2 a 2b n3 ab n2 b n1 a n b n a b a n1 a n2b a n3b 2 a 2b n3 ab n2 b n1 4. Sum & Difference OfPowers a n b n a b a n1 a n2b a n3b 2 a 2b n3 ab n2 b n1 a n b n a b a n1 a n2b a n3b 2 a 2b n3 ab n2 b n1 NOTE: n must be odd 5. Sum & Difference OfPowers a n b n a b a n1 a n2b a n3b 2 a 2b n3 ab n2 b n1 a n b n a b a n1 a n2b a n3b 2 a 2b n3 ab n2 b n1 NOTE: n must be odde.g. x 5 32 6. Sum & Difference OfPowers a n b n a b a n1 a n2b a n3b 2 a 2b n3 ab n2 b n1 a n b n a b a n1 a n2b a n3b 2 a 2b n3 ab n2 b n1 NOTE: n must be odde.g. x 5 32 x 5 25 7. Sum & Difference OfPowers a n b n a b a n1 a n2b a n3b 2 a 2b n3 ab n2 b n1 a n b n a b a n1 a n2b a n3b 2 a 2b n3 ab n2 b n1 NOTE: n must be odde.g. x 5 32 x 5 25 x 2x 4 2 x 3 4 x 2 8 x 16 8. Exercise 6M; 1dhlo, 2bdf, 4b