Examples: When/Why Can You Cross-Multiply?
In this video, we try to understand when/why you can cross-multiply with ratios.
0:09 Why can you cross-multiply?
0:23 Review of ratios
1:08 Why does cross-multiply work with ratios but not other rational equations?
Check out all my videos on rational expressions here: • Lesson: Review of Grouping and the Su...
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