a math question

2009-06-28 6:53 pm
1. α and β are the roots of the equation x^2+ax+b=0 , where a, b are real constants.

a)find, in terms of a and b, the value of

i)α^3+β^3
ii)(α-β^2+1)(β-α^2+1)

b)Hence, or otherwise, find the condition that one root of the equation plus 1 is equal to the square of the other.

回答 (1)

2009-06-28 7:23 pm
✔ 最佳答案
As follows:

圖片參考:http://i707.photobucket.com/albums/ww74/stevieg90/01-46.gif


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