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How do you solve $x^2 - 10x = 1575$ by completing the square?

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Apr 11, 2016

$=>x^2-2xx5xxx+5^2-25=1575$
$=>(x-5)^2=1575+25$
$=>(x-5)^2=1600$
$=>(x-5)=+-sqrt1600=+-400$
$: x=405 and x= -395$

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