[SOLVED] the root of y=21x^2-1000x-905

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The Discriminant

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The Work

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The Actual Solutions

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The Graph

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The roots of:

$$22x^2-1000x-905$$ | $$23x^2-1000x-905$$ | $$24x^2-1000x-905$$ | $$25x^2-1000x-905$$ | $$26x^2-1000x-905$$ | $$27x^2-1000x-905$$ | $$28x^2-1000x-905$$ | $$29x^2-1000x-905$$ | $$30x^2-1000x-905$$ | $$31x^2-1000x-905$$

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