UnknownEcho01
UnknownEcho01 UnknownEcho01
  • 24-08-2017
  • Mathematics
contestada

F(x)=99, what is x?

Fx99 what is x class=

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royalroyfan1
royalroyfan1 royalroyfan1
  • 24-08-2017

The answer is x = 10, and it could alternatively be x = -10 depending on what topic this is and if negatives apply.

x^2 - 1 = 99
Add 1 to both sides.
x^2 = 100
Square root both sides
x = 10

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