braydinrussell braydinrussell

26-08-2018
Mathematics

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a number is squared, and the result is doubled. the final result is 72. find the original number

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crisbownisdabest crisbownisdabest

26-08-2018

let's call x the unknown number

so the equation is: x² * 2 = 72
let's solve for x

x² = 36
x = √36
x = 6

So the original number was 6

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