IF x^2+sx+p
and x1 ,x2 is the answer of function
(x1)^3+(x2)^3=??(parametric function whit s,p)
2006-07-19 02:28:50 · 13 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
s^3-3ps
2006-07-20 07:55:23 · answer #1 · answered by Parsa D 1 · 1⤊ 0⤋
3
2006-07-19 09:31:35 · answer #2 · answered by Diamond Freak :) 4 · 0⤊ 0⤋
if the x^2+sx+p=0 then x1, x2 are roots of the quadratic equation.
sum of roots: x1+x2= -s
product of roots: x1.x2=p
formula: (x1)^3+(x2)^3=(x1+x2)^3 - 3x1x2(x1+x2)
= (-s)^3 - 3p(-s)
= -s^3 + 3ps.
2006-07-19 09:54:28 · answer #3 · answered by Venkata Koteswararao P 1 · 0⤊ 0⤋
x1^3 + x2^3 = x1+x2 - 3x1x2 -p
2006-07-19 09:35:37 · answer #4 · answered by lubetj 1 · 0⤊ 0⤋
Kansas!
2006-07-19 09:30:57 · answer #5 · answered by blind_chameleon 5 · 0⤊ 0⤋
42. The answer to life, the universe, and everything.
2006-07-19 09:34:05 · answer #6 · answered by cindersphere 2 · 0⤊ 0⤋
I want to see this answer, to this question looks a bit incomplete to me? but I don't know.
2006-07-19 09:36:47 · answer #7 · answered by anti_money 2 · 0⤊ 0⤋
my brain is off for the summer sorry
2006-07-19 09:31:43 · answer #8 · answered by Ambsz 3 · 0⤊ 0⤋
x
2006-07-19 09:30:19 · answer #9 · answered by Troy S 5 · 0⤊ 0⤋
its the carlyle circle
2006-07-19 09:32:51 · answer #10 · answered by t4jramm 2 · 0⤊ 0⤋