Hi

f(x) = 9x^2 + 36x + 36

f(x) = 9

   9 = 9x^2 + 36x + 36

  9x^2 + 36c + 27 = 0

  3x^2 + 12c + 9 = 0

factoring

 (3x + 3)(x + 3)= 0 Note:SUM of the inner product(3x) and the outer product(9x) = 12x

 (3x + 3)=0

      x = -1

 (x + 3)= 0

      x = -3 

Answer by solver91311(24713)   (Show Source): You can put this solution on YOUR website!
 





If











AND











Then











Which is to say:











Just solve the quadratic using the quadratic formula.  







John



My calculator said it, I believe it, that settles it



 

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