Recognising a quadratic
Recognising a quadratic
A quadratic equation has highest power 2, such as x2x^2x2. Before using the formula, write it in standard form ax2+bx+c=0ax^2+bx+c=0ax2+bx+c=0 with a≠0a \ne 0a=0.
Recognising a quadratic
Recognising a quadratic
A quadratic equation has highest power 2, such as x2x^2x2. Before using the formula, write it in standard form ax2+bx+c=0ax^2+bx+c=0ax2+bx+c=0 with a≠0a \ne 0a=0.
Step-by-step lessons covering Edexcel IGCSE Maths Quadratic Formula for IGCSE Maths. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Build confidence with the shared Foundation-tier content first, since roughly 40% of Higher-tier marks are targeted at the grades 4–5 boundary that both tiers have in common.