Worksheet for practicing factorising quadratic expressions, divided into four sections with multiple problems.

I understand you've uploaded an image containing a worksheet titled "Factorising Quadratic Expressions (B)" with multiple sections of quadratic expressions to factorise. However, I currently cannot view or access images directly.

To help you solve the problems, please provide the text of the quadratic expressions you'd like me to factorise, or describe the specific questions you're struggling with.

For example, if you want help with one of the problems like:

> Factorise: $ x^2 + 7x - 30 $

I can walk you through the steps.

General Method for Factoring Quadratics:

For a quadratic in the form $ ax^2 + bx + c $:

1. Find two numbers that:
- Multiply to $ a \times c $
- Add to $ b $
2. Split the middle term using those numbers
3. Factor by grouping

Let me know which specific problems you'd like help with, and I’ll guide you step-by-step!