Wow. That looks really confusing. Hmmmm.....I don't have a clue. Sorry. Maybe Brad could help you. I am going to laugh when that question shows up on the regional test. Anyways...i'm sry i can't answer your question,but best wishes for regionals. I wish everyone the best of luck!
ok zack and i got something here. 1^3=1=1*1 1^3-2^3+3^3=20=4*5 1^3-2^3+3^3-4^3+5^3=81=9*9 1^3-2^3+3^3-4^3+5^3-6^3+7^3=208=16*13 1^3-2^3+3^3-4^3+5^3-6^3+7^3-8^3+9^3=425=25*17... line them up: 1*1 4*5 9*9 16*13 25*17... a pattern surfaces Try the negative ends: 1^3-2^3=-7=1*-7 1^3-2^3+3^3-4^3==-44=4*-11 1^3-2^3+3^3-4^3+5^3-6^3=-135=9*-15 1^3-2^3+3^3-4^3+5^3-6^3+7^3-8^3=-304=16*-19 line them up: 1*-7 4*-11 9*-15 16*-19... Ergo, the answer to the above-proposed question should be 2 more terms down that sequence, id est, 36*-27=-972
