If `2x+3y=13` and `x y=6` , find the value of `8x^3+27 y^3`

Explanation

To solve the problem, we need to find the value of \(8x^3 + 27y^3\) given the equations \(2x + 3y = 13\) and \(xy = 6\).

### Step-by-Step Solution:

1. **Start with the given equations**:
\[ 2x + 3y = 13 \quad \text{(1)} \]
...