If x is an integer and (x)(x^2)(x^3)(x^10) is positive, which of the following could be negative? Choose the correct choice from the following answers
A) x^4  B) (x)(x^3)  C) (x)(x)  D) x + x^9  E) 3x^2
A) X^4 - always positive (or 0).   B) X(X^3) = X^4 - Again always positive (or 0).   C) (x)(x) = X^2 - Again always positive (or 0).   D) x+x^9 - Could be -ve if x is -ve.   E) 3X^2 - again always positive (or 0)   Answer x + x^9.
<result>D</result>
If x is an integer and (x)(x^2)(x^3)(x^10) is positive, which of the following could be negative?