jenisa92 jenisa92

13-12-2018
Mathematics

contestada

solve |x| = 74, if possible

Respuesta :

14-12-2018

|a| = a for a ≥ 0

|a| = -a for a < 0

|x| = 74 ⇒ x = 74 or x = -74

check:

|-74|=-(-74) = 74

|74| = 74

CORRECT

Answer: x = -74 or x = 74.

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