x 2 = 3+2x - -1 , 3, 3x 2 +5x -2=0 - -2, 1/3, 6r 2 -r - 2=0 - -1/2, 2/3, x 2 =7x - 0, 7, y 2 -9 - 3, -3, 5 x 3 -20x =0 - -2, 0, 2, 16r 3 - 9r =0 - -3/4, 0, 3/4 , ( x+1) (6x 2  + x -12) - -3/2, -1, 4/3, z( 2z +7) =4 - -4, 1/2 , 10y 2 = -5y - -1/2, 0 ,

Solving quadratic equations

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