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[" If "|[x^(2)+x,x+1,x-2],[2x^(2)+3x-1,3...

[" If "|[x^(2)+x,x+1,x-2],[2x^(2)+3x-1,3x,3x-3],[x^(2)+2x+3,2x-1,2x-1]|=Ax-12],[" then evaluate the value of "A]

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" If " |{:(x^(2)+x,,x+1,,x-2),(2x^(2)+3x-1,,3x,,3x-3),(x^(2)+2x+3,,2x-1,,2x-1):}|=xA +B then find A and B

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