x

What quadratic inequalities mean

Upward-opening parabola crossing the x-axis at -5 and -2, with positive regions outside the roots and a negative region between them A quadratic inequality asks for all the values of $x$ that make a quadratic expression positive or negative, such as $x^2+4x+3>0$ . The roots are the key starting points because they are the values where the expression equals zero.

Quadratic Inequalities Lesson

IGCSE
Maths
Quadratic Inequalities

Step-by-step lessons covering Edexcel IGCSE Maths Quadratic Inequalities 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.

Lessons

x

What quadratic inequalities mean

Upward-opening parabola crossing the x-axis at -5 and -2, with positive regions outside the roots and a negative region between them A quadratic inequality asks for all the values of $x$ that make a quadratic expression positive or negative, such as $x^2+4x+3>0$ . The roots are the key starting points because they are the values where the expression equals zero.

Quadratic Inequalities Lesson

IGCSE
Maths
Quadratic Inequalities

Step-by-step lessons covering Edexcel IGCSE Maths Quadratic Inequalities 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.