perezjulian605 perezjulian605

26-06-2018
Mathematics

contestada

w^2-49=0 what are both solutions one is what's the other??

Respuesta :

mkryukova19 mkryukova19

26-06-2018

w² - 49 = 0
w² - 7² = -
(w-7)(w+7)=0
w -7=0 , or w + 7 =0
w=-7, w=7

Answer: -7, 7.

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