上7D还是5D2?# PhotoGear - 摄影器材
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【 以下文字转载自 Mathematics 讨论区 】
发信人: seanx2 (sean), 信区: Mathematics
标 题: help for math, thanks a lot!
发信站: BBS 未名空间站 (Tue Oct 26 23:12:14 2010, 美东)
The questions are:
1 how many complex zeroes will this function have
2 how many real zeroes will this function have
3 make a list of all possible rational zeroes for this function
p(x) = 2x^4 + 7x^3 - 6x^2 -5x + 9
发信人: seanx2 (sean), 信区: Mathematics
标 题: help for math, thanks a lot!
发信站: BBS 未名空间站 (Tue Oct 26 23:12:14 2010, 美东)
The questions are:
1 how many complex zeroes will this function have
2 how many real zeroes will this function have
3 make a list of all possible rational zeroes for this function
p(x) = 2x^4 + 7x^3 - 6x^2 -5x + 9