I'm unable to process and simplify the mathematical expressions directly from the image you provided. However, I can guide you on how to approach the simplification of these expressions step by step.

1. **Expand each term:** For expressions like \((a+b)^2\), use the formula \(a^2 + 2ab + b^2\).
2. **Combine like terms:** After expansion, combine any terms that have the same variables and powers.
3. **Factor if necessary:** Look for common factors in the resulting expression that can be factored out for further simplification.

If you need help with a specific expression or a step in the process, feel free to ask!