In this algebra activity, 11th graders solve equations containing roots and variables. They check their work for extraneous solutions. There are 28 problems with an answer key.
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TI-nspire-ing Extraneous Solution Understanding
Students explore extraneous roots to radical equations. In this Algebra II instructional activity, students solve equations which are typically "unanswerable" with paper and pencil. The use of the TI-npire provides a method of solution...
8th - 11th Math CCSS: Adaptable
Extraneous Solutions to Radical Equations
Bringing it all together in this video, Sal incorporates the concepts from previous lectures (quadratic formula, multiplying polynomial expressions, radical expressions, exponents). This video would be a great way to end a unit or review...
4 mins 7th - 11th Math CCSS: Adaptable