nattx13
nattx13 nattx13
  • 16-09-2017
  • Mathematics
contestada

can someone help me with this ?

can someone help me with this class=

Respuesta :

JinaWu
JinaWu JinaWu
  • 16-09-2017
(w³+7)/w=(9w²+7)/9
(w³+7)9=(9w²+7)x
9w³+63=9w³+7x
63=7x
x=9
Answer Link
2Lucky
2Lucky 2Lucky
  • 16-09-2017
w cannot = 0
Cross multiply to get 
9(w^3+7) = (9w^2+7)w
Remove parentheses 
9w^3+63=9w^3+7w
Cancel equal terms
63 = 7w
Divide by 7
w = 9 , w = 0
Answer Link

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