Quadratic eqn with roots 7 and -3
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x^2 - ( a+b)x + ab =0
x^2 - ( 4)x + (7 x -3) =0
x^2 - 4x - 21 =0
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PLEASE MARK ME AS BRAINLIST IT REALLY TAKES EFFORT sorry i had taken a sign oppostite please change it add -21
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