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Quadratic Equations - Exercise 4 - Extracting Square Roots

Solve the equation (3x - 5)2 + 7 = 12 and justify each step as was done in Exercise 3.  Note that one of the properties used in justification is Extract Square Roots.

STATEMENT JUSTIFICATION
(3x - 5)2 + 7 = 12

 

 Given

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