Find the points on the X-axis which are at distance of `2sqrt(5)` from the point (7,-4) . How many such points are there ?

Explanation

To find the points on the X-axis that are at a distance of \(2\sqrt{5}\) from the point \((7, -4)\), we can follow these steps:

### Step 1: Define the Points
Let the point on the X-axis be \(P(x, 0)\). The coordinates of the given point are \(Q(7, -4)\).

### Step 2: Use the Distance Formula
The distance \(d\) between two points \(P(x, 0)\) and \(Q(7, -4)\) is given by the distance formula:
\[
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