Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take mock test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Solve x² + 2x - 15 > 0
💡 Hint: Factor the expression and find the roots.
Question 2
Easy
Solve x² - 4x + 4 ≤ 0
💡 Hint: This quadratic is a perfect square.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What form does a quadratic inequality take?
- a) ax² + bx + c
- b) ax² + bx + c < 0
- c) ax² + bx + c > 0
- d) Both b and c
💡 Hint: Remember that they involve comparisons.
Question 2
True or False: A quadratic inequality can have more than one solution.
- True
- False
💡 Hint: Think about the number line representation.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Find the range of values for x in the inequality x² - 4x - 5 < 0.
💡 Hint: Start by factoring the expression.
Question 2
A company models profit with the inequality -2x² + 8x - 6 ≥ 0, where x is the number of products sold. Find the range of x that ensures profit.
💡 Hint: Identify where the profit model touches or exceeds zero.
Challenge and get performance evaluation