YourNeighbor
YourNeighbor YourNeighbor
  • 15-02-2017
  • Mathematics
contestada

I need the formula not the answer thanks

x^{2} [/tex]>49

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apologiabiology
apologiabiology apologiabiology
  • 15-02-2017
x²>49
well, I don't know a formula but this is how I would solve it
I first solve x²=49 to obtain x=+/-7

so then would it be x>+/-7?
if we try 8 it works
if we try -9 it works

so answer is x>+/-7
basically x<-7 or x>7
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