Solving Logarithmic Equations (Including Extraneous Solutions/Restrictions) • [8.4b] PRE-CALCULUS 12

Learn how to solve logarithmic equations using the 'antilog' concept, including looking at restrictions on variables in expressions involved, and several equations that result in extraneous solutions.

Corresponds to chapter 8, section 8.4 in McGraw-Hill's Pre-Calculus 12, but also fits with the exponents and logarithms unit from almost any other Pre-Calculus course or textbook.

My instructional approach emphasizes conceptual understanding of and connections between concepts and ideas, rather than just pure memorization.

#precalc12bytheaamg

00:00 Introduction
00:17 Example 1: Solving a Simple Logarithmic Equation Using 'Antilog'
03:36 Example 2: Solving a Logarithmic Equation Requiring Several Antilog Steps
06:20 Example 3: Solve a Logarithmic Equation With Variable on Both Sides
09:25 Example 4: Solve Logarithmic Equations with Extraneous Solutions
12:48 Example 4b
17:55 Wrap Up and End Screen