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## Homework Statement

Where on the x-axis would the net force on a (-2) micro Coulomb charge be zero?

*picture attached*

## Homework Equations

F = k*(q1q2)/d^2

## The Attempt at a Solution

I think the answer is d= 6, making the position on the x-axis = 7. However, when solving my equation, I have to take the square root of a negative number, which obviously has no real answer. I couldn't seem to logic my way around it, so what am I missing? Other than expressing the answer in terms of i, how can I get around this??

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