Subtract:
`-x^(2) + 10x - 5 "from" 5x -10`

Answer

To solve the problem of subtracting \(-x^2 + 10x - 5\) from \(5x - 10\), we will follow these steps:

### Step-by-Step Solution:

1. **Identify the expressions**: We need to subtract the expression \(-x^2 + 10x - 5\) from \(5x - 10\). This can be written as:
\[ (5x - 10) - (-x^2 + 10x - 5) \]

2. **Distribute the negative sign**: When we subtract the second expression, we need to distribute the negative sign across all terms in \(-x^2 + 10x - 5\):
\[ 5x - 10 + x^2 - 10x + 5 \]

3. **Combine like terms**: Now, we will combine the like terms. The like terms are:
- The \(x^2\) term: \(x^2\)
- The \(x\) terms: \(5x - 10x = -5x\)
- The constant terms: \(-10 + 5 = -5\)

Putting it all together, we get:
\[ x^2 - 5x - 5 \]

4. **Final answer**: Therefore, the result of the subtraction is:
\[ x^2 - 5x - 5 \]