Answer :

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Which equation has the same solution as x²- 6x - 12 = 0

 x^2 - 6x = 12 

x^2 -6x + 9 = 12+9 


x^2 -6x + 9 =21 


(x-3)^2 = 21

So the answer will be (x-3)^2=21 

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