How many real roots does the polynomial 2x^5+8x-7 have?(A)None (B)One(C)Two(D)Three(E)Five

How many real roots does the polynomial 2x^5+8x-7 have?(A)None (B)One(C)Two(D)Three(E)Five sat2 数学 几个算是专有名词 求中文翻译 1.real irrational roots 2.complex conjugate roots roots How many ways a man must go before he turns to be a real man? 英语作文句子中含有两个people,应该怎么修改?many people criticize it,but few people know the real roots.那个know是不是可以换成什么高级词汇. what is the greatest number of real roots a polynomial of degree 4 can have?explain? how many how many, 1.how many p___do plants have?2.roots grow b__ground.3.l___make food for the plant.4.the s__carries the water from the roots to the leaves and flowers.5.the seed of the rice plant feed b__of people.6.theseed will g__into a plant.7. 求一题SAT2的数学题how many possible rational roots are there for 2x^4 +4x^3 -6x^2 +15x -12 =0答案是16个,我看不明白,根不是4个吗?什么叫possible Rational roots?是就是,不是就不是,什么叫可能的实根. 英语翻译As researchers probe the genetic roots of cancer,they are gaining an unprecedented understanding of how the disease develops.And this new insight into the biology of cancer promises to lead to better diagnosis and many more treatment opti the roots of the equation x2-7x+15=0,a.imaginaryb.real,rational,and equalc.real,irration,and unequald.real,rational,and unequal how many how For p(x)=3x^9+2x^6+3x^3-2x^2+x-1A)find the possible number of positive real roots.B)find the possible number of negative real roots. For p(x)=3x^9+2x^6+3x^3-2x^2+x-1A)find the possible number of positive real roots.B)find the possible number of negative real roots How Many Times,How Many Lies 歌词 how to be a real man... in search of roots Many tourists _____ deeply ______( move) by his bhavior.翻译.