Algebra
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Unit 3: Solving Inequalities
Lesson 3.4: How Do We Solve Multi-Step Inequalities?
Here are some great examples from the great Salman Kahn:
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What does that mean, to say that there are no solutions? This is what we call "The Empty Set."
There are no real numbers that exist in our universe that can solve that problem. It remains unsolvable (hence the frowny face).
Let's look more deeply at the idea of sets in the next lesson.
There are no real numbers that exist in our universe that can solve that problem. It remains unsolvable (hence the frowny face).
Let's look more deeply at the idea of sets in the next lesson.