Two point charge - 5`mu`C and + 3`mu`C are placed 64 cm apart. At what points on the line joining the two charges is the electric potential zero. Assume the potential at infinity to be zero.

Explanation

To find the points on the line joining two charges where the electric potential is zero, we can follow these steps:

### Given:
- Charge \( Q_1 = -5 \, \mu C = -5 \times 10^{-6} \, C \)
- Charge \( Q_2 = +3 \, \mu C = +3 \times 10^{-6} \, C \)
- Distance between the charges \( d = 64 \, cm = 0.64 \, m \)

### Step 1: Define the positions
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