GCSE 2025 Predicted Papers and Revision Resources
Quadratic inequalities are mathematical expressions that involve a quadratic with a variable such as x and an inequality symbol such as greater than (>), less than (<), greater than or equal to (≥), or less than or equal to (≤).
Solving quadratic inequalities involves finding the values of x that satisfy the inequality.
This can be done by graphing the quadratic function and shading the appropriate region, or by using algebraic techniques such as factorisation, completing the square, or using the quadratic equation.
Most often at GCSE level we solve quadratic equations by factorising.
Solve 2x^2 + 3x - 2 > 0
