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Given p(x)=x^4+ax^3+bx^2+cx+d,such that x=0 is the only real root of p'(x)=0.If p(-1)<p(1),then in the interval [-1,1],which is maximum and minimum of p(-1) and p(1)?:
a)p(-1) is minimum and p(1) is maximum.
b)p(-1) is not minimum and p(1) is maximum.
c)neither p(-1) is minimum nor p(1) is maximum.

asked by Gunjan

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