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-x^2 + 2x+3 =0...

`-x^2 + 2x+3 =0`

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If A = {x |6x^2 + x - 15) = 0} , B = {x | (2x^2) - 5x - 3 = 0} , C = {x | (2x^2) - x - 3 = 0} then find A uu B uu C

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x^(2)-2x + 3/2=0

x^(2)-2x + 3/2=0

x^(2)-2x + 3/2=0

x^(2)-2x + 3/2=0

x^(2)-2x + 3/2=0