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Expand and simplify?
(x+y)^7, (2x-3)^4, (x+y)^13,
2 Answers
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- ?Lv 76 years ago
What a bore!!!
(x+y)^7 = x^7 + 7yx^6 + 21y^2x^5 + 35y^3x^4 + 35y^4x^3 + 21y^5x^2 + 7y^6x + y^7.
(2x-3)^4 = 16x^4 - 96x^3 + 216x^2 - 216x + 81.
(x+y)^13 = x^13 + 13yx^12 + (13*12/2)y^2x^11 + (13*12*11/3*2*1)y^3x^10 + et cetera, this is TOO boring! sorry
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