Question 543570

    2x^2+x=-1

    FIRST OF ALL TRY 2 PUT 1 INTO THE LEFT HAND SIDE IN ORDER TO BE FACTORIZED

   2X^2 +X +1 = 0

   2X ( X + 1) - 1 (X +1 ) = 0

     (X +1) (2X - 1)

  X + 1= 0  ,       2X - 1 = O
   X = -1     ,     2X = 1... DIVIDE BOTH SIDES BY 2
   X = - 1    ,          X = 1/2
   
    X = - 1 OR 1 / 2