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maggie444 maggie444
  • 21-03-2017
  • Mathematics
Answered

evaluate 6+ the sq root of 14+x minus - the sq root of 9x when x=2

Verified Answer :

ghanami
ghanami ghanami
  • 22-03-2017

Hello 
let : f(x) = 6 + √(14+x) - √(9x)
f(2) = 6 + √(14+2) - √(9×2)
f(2) = 6 + √(16)-√(18) 
f(2) = 6 + 4 - √(18)  = 10 - √(18) 

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