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 Oxford AQA IGCSE Maths Quadratic Inequalities for Core and Extended tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 (Core: 1C and 2C; Extension: 1E and 2E) format. Since content from any part of the specification can appear on either paper, keep number and algebra fluency sharp throughout the course rather than leaving it until near the exam.

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 Oxford AQA IGCSE Maths Quadratic Inequalities for Core and Extended tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 (Core: 1C and 2C; Extension: 1E and 2E) format. Since content from any part of the specification can appear on either paper, keep number and algebra fluency sharp throughout the course rather than leaving it until near the exam.