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Solve x2 – 4x = 12 by completing the square. Show your work for full credit.
 one year ago
 one year ago
Solve x2 – 4x = 12 by completing the square. Show your work for full credit.
 one year ago
 one year ago

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cwrw238Best ResponseYou've already chosen the best response.1
first you divide coefficient of 4x by 2 giving 2 and now you write (x  2)^2  (2)^2 = 12 (x  2)^2  4 = 12 (x  2)^2 = 16 take square roots of both sides x  2 = +/ 4 x = 4 +2 or 4 + 2 so the solution set is {6 , 2}
 one year ago
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