cwalcott cwalcott
  • 23-06-2017
  • Mathematics
contestada

If f(x) = x2 − 1, and f(2a) = 35, then what could be the value of a

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TheHero
TheHero TheHero
  • 23-06-2017
f(2a) = 4a^2 - 1 = 35

4a^2 = 36

a^2 = 9

a =  + or  - 3
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