I show how to solve simple equations such as x^2 - 4 = 21 where the solution process involves taking a square root. These types of equations arise naturally from using the Pythagorean Theorem, and thus this lesson prepares students for that. The lesson suits best grade 7 or 8 math (pre-algebra). Learn more pre-algebra with Math Mammoth curriculum at http://www.mathmammoth.com/complete/grade_7.php - available both as a download and as printed copies.
Tagged under: Square Root,Equation,Mathematics (Field Of Study),Pre-algebra,Grade 8,grade 7
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