Answer:It looks like you have a set of algebraic expressions. Here’s how to simplify each expression:1. **Simplify** \( 4 + 5x - 10x + 5 \) - Combine like terms: \( 4 + 5 - 5x \) - Simplified: \( 9 - 5x \)2. **Simplify** \( 5 \cdot 3x^2 + 8x + 5 \) - Distribute the 5: \( 15x^2 + 8x + 5 \) - Simplified: \( 15x^2 + 8x + 5 \)3. **Simplify** \( 3x \) - This is already in its simplest form: \( 3x \)4. **Simplify** \( 66x - 2x - 4 \) - Combine like terms: \( (66x - 2x) - 4 \) - Simplified: \( 64x - 4 \)5. **Simplify** \( 76x - 13x - 5 \) - Combine like terms: \( (76x - 13x) - 5 \) - Simplified: \( 63x - 5 \)6. **Simplify** \( 8 \cdot 5x + 2x - 3 \) - Distribute the 8: \( 40x + 2x - 3 \) - Combine like terms: \( 42x - 3 \) - Simplified: \( 42x - 3 \)Let me know if you need further explanations or additional help!