(x-9)^2-4=21

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Solution for (x-9)^2-4=21 equation:



(x-9)^2-4=21
We move all terms to the left:
(x-9)^2-4-(21)=0
We add all the numbers together, and all the variables
(x-9)^2-25=0
We move all terms containing x to the left, all other terms to the right
(x-9)^2=25

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