If x = -1, Then –(x4+x3+x2+x) =
সমাধান
সঠিক উত্তর: Option C
x = -1
so,
[(-1)4 + (-1)3 + (-1)2 + (-1)]
= [1 - 1 + 1 - 1]
{Even number of power changes the Plus/Minus sign, but in Odd number of power the sign remains unchanged}
= 0
