GCSE Maths | Quadratics

1 min read

Factorising easy quadratics

  • a2 - b2 = (a+b)(a-b)

Difference between two squares

Difference between two squares

Factorising harder quadratics

Completing the square

Using the quadratic formula

Quadratic inequalities

2 min read

GCSE Maths | Reverse Percentages

Non-Calculator – Part 1 1. After a 20% decrease, a jacket costs £64. What was the original price? 2. A bike is sold for £72 after a 10% discount. What was the original price?
1 min read

GCSE Maths | Transformations of Graphs

* Types of transformations: * Enlargement (stretch) * Translation (movement) * Reflection * Tricks * Transformations outside the bracket affect the y-coordinates * Transformations inside the bracket affect the x-coordinates * When it is inside the bracket, think OPPOSITE * f(x)