2x/5 + 2/5, x2+4/x -3x+4/x

To solve the expression, we'll split it into two parts.

1. For the first expression, 2x/5 + 2/5:
- Both terms have a common denominator of 5.
- We can combine these fractions:
(2x + 2)/5.
- This is the simplified form of the first expression.

2. For the second expression, (x^2 + 4)/x - (3x + 4)/x:
- Since both terms share the same denominator (x), we can combine them:
(x^2 + 4 - 3x - 4)/x.
- Simplifying the numerator gives us (x^2 - 3x)/x.
- We can factor the numerator: x(x - 3)/x.
- The terms x in the numerator and denominator cancel out, giving us x - 3, as long as x ≠ 0 (since division by zero is undefined).

Thus, the solutions are as follows:
- First expression: (2x + 2)/5
- Second expression: x - 3 (for x ≠ 0).