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02-09-2016
Mathematics

contestada

solve |x - 1|>4 a. {x|x< -5 or x> 5} b. {x|-3< x< 5} c. {x|x< -3 or x> 5}

Respuesta :

dalendrk dalendrk

02-09-2016

|x - 1| > 4 ⇔ x - 1 > 4 or x - 1 < -4 |add 1 to both sides

x > 5 or x < -3

Answer: c. {x| x < -3 or x > 5}.

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