lovepuppies2 lovepuppies2
  • 22-06-2017
  • Mathematics
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ten times the square root of a nonzero number is equal to forty times the number

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ghanami
ghanami ghanami
  • 23-06-2017
hello : 
let : x this number 
 10√x = 40 x ..... x > 0
√x = 4 x  and : x > 0
(√x )²= (4 x)²  and : x > 0
x = 16 x²   ....x > 0 : i'can simplifiy by : x 
1 =16x
x = 1/16

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