- Home
- GCSE Maths
- Inequalities
Solving quadratic inequalities
- Intro Lesson14:18
- Lesson: 18:30
- Lesson: 27:31
Solving quadratic inequalities
Basic Concepts: Solving quadratic equations by factoring, Solving quadratic equations by completing the square, Solving quadratic equations using the quadratic formula
Related Concepts: Graphing quadratic inequalities in two variables, Graphing systems of quadratic inequalities
Lessons
- Introduction
Solve:
i) x2+2x−15=0
ii) x2+2x−15≤0
iii) x2+2x−15 > 0
- 1.
Solve:
i) −2x2+x+3=0
ii) −2x2+x+3≥0
iii) −2x2+x+3 < 0
- 2.
Solve:
i) x2−10x+25=0
ii) x2−10x+25 > 0
iii) x2−10x+25 < 0
iv) x2−10x+25≤0