In this algebra lesson, students solve radical equations by taking the square root of each side of the equation. There are 26 problems on this learning exercise with an answer key.
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Relationships Between Quantities and Reasoning with Equations and Their Graphs
Graphing all kinds of situations in one and two variables is the focus of this detailed unit of daily lessons, teaching notes, and assessments. Learners start with piece-wise functions and work their way through setting up and solving...
6th - 10th Math CCSS: Designed
TI-nspire-ing Extraneous Solution Understanding
Students explore extraneous roots to radical equations. In this Algebra II lesson, students solve equations which are typically "unanswerable" with paper and pencil. The use of the TI-npire provides a method of solution and moves the...
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