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Which is the value of the smaller zero defined by the function f (x) = 25x² – 4?

User Nielsj
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1 Answer

9 votes

Let's see


\\ \sf\longmapsto 25x^2-4=0


\\ \sf\longmapsto 25x^2=4


\\ \sf\longmapsto (5x)^2=2^2


\\ \sf\longmapsto 5x=2


\\ \sf\longmapsto x=(2)/(5)

  • Smallest zero 2/5
User Robert Fleming
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