Hi

2x^2-3x=20

2x^2-3x-20=0





  x = (3 ± 13)/4

  x = 4

  x = -10/4 = -5/2



CHECKING our Answer***

 (x-4)(x+5/2) = 0

 

 2x^2 -3x-20 = 0 

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