1. The problem statement, all variables and given/known data Two charges q1=+9c and q2+-1c are separated by 2m. Where is their neutral point? 2. Relevant equations E = E(+) + E(-) E= k q/r^2 3. The attempt at a solution k q1/(2+x)^2 = -(k q2/x^2) When I solve for this equation I end up square rooting a negative number which would then give i and I don't know how to work with this.