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Why do we use the quadratic formula as opposed to trying to solve using factoring

Why do we use the quadratic formula as opposed to trying to solve using factoring
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Why do we use the quadratic formula as opposed to trying to solve using factoring

User Joraff
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Sometimes there is no apparent way to factor it by hand /(the factors are decimals or imaginary). To try and factor these problems is nearly impossible in your head.
User Xpt
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