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28-07-2018
Mathematics

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Solve the equation using square roots 2x^2=242

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WojtekR WojtekR

28-07-2018

[tex] 2x^2=242\qquad|:2\\\\x^2=121\qquad|\sqrt{(\ldots)}\\\\\\\boxed{x=11\qquad\vee\qquad x=-11} [/tex]

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