Find all real numbers a such that a2= a-2. Explain why this does not violate the exponential function property which states ax=ay if and only if x=y.  For what value(s) of a does a2=a-2?

Intermediate Algebra
19th Edition
ISBN:9780998625720
Author:Lynn Marecek
Publisher:Lynn Marecek
Chapter10: Exponential And Logarithmic Functions
Section10.2: Evaluate And Graph Exponential Functions
Problem 123E: Explain how you can distinguish between exponential functions and polynomial functions.
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Find all real numbers a such that a2= a-2. Explain why this does not violate the exponential function property which states ax=ay if and only if x=y. 

For what value(s) of a does a2=a-2?

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