How to Solve Exponential Equations

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Presentation transcript:

How to Solve Exponential Equations Steps 1. Write each side with the same base. 2. Simplify using the rules of exponents. 3. Set the exponents equal to each other & solve for x. “If the bases are the same, cancel them out!” Example 1 2x+4=25x x+4 = 5x -x -x 4 = 4x 4 4 x = 1 Example 2 3x-1 = 27x 3x-1 = (33)x 3x-1 = 33x x-1 = 3x -1 = 2x 2 2 x = -½ ©2010, Dr. Jennifer L. Bell, LaGrange High School, LaGrange, Georgia adapted from various sources (MCC9-12.A.SSE.3; MCC9-12.A.SSE.3c)