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$$9x^2-1000x-991$$ | $$10x^2-1000x-991$$ | $$11x^2-1000x-991$$ | $$12x^2-1000x-991$$ | $$13x^2-1000x-991$$ | $$14x^2-1000x-991$$ | $$15x^2-1000x-991$$ | $$16x^2-1000x-991$$ | $$17x^2-1000x-991$$ | $$18x^2-1000x-991$$
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