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the function fx is defined by f(x)=x^2-2x, x y given thaT (FA)=8 FIND TO POSSIBLE values for a

 Sep 15, 2021
 #1
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+1

f(a) = a^2-2a    = 8

         0 = a^2 -2a-8

         0 = (a-4)(a+2)          a = +4   or    -2

 Sep 15, 2021

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