Seudónimo Seudónimo
  • 14-04-2017
  • Mathematics
contestada

help with these two please
thank youu

(no need to show work, just please be sure of ur answer)

help with these two please thank youu no need to show work just please be sure of ur answer class=
help with these two please thank youu no need to show work just please be sure of ur answer class=

Respuesta :

chloker
chloker chloker
  • 14-04-2017
the answer to the question is 5 -5
Answer Link
tmcclaskey19
tmcclaskey19 tmcclaskey19
  • 14-04-2017
1. 2x^2=50 -> x^2=25 -> sqrt(x^2) = sqrt(25) -> x = +/- 5

2. (c+9)^2 = 64 -> square root both sides ->
(a) c+9=8 -> c= c= 8-9 -> c=-1
(b) c+9= -8 -> c= -8-9 -> c= -17


Answer Link

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