Description : How many possible positive and negative zeros are in 3x^5 + 6x?
Last Answer : You do not need the rule of signs to determine the number of positive and negative roots. Start by factoring out x to get x(3x^4 + 6) = 0. We have one root at x=0. Let's check for ... solutions, positive or negative, since any real number raised to an even power must be greater than or equal to 0.