what is the quadratic formula? -b+_ square root of.....?

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My teacher taught me a song.x equals -b, plus or minus the square root of b squared minus 4ac, all over 2a.So, it would look something like this:x = -b +- SquareRoot(b^2-4ac)/2aIf you write it out, you'll know. Make sure to use the order of operations when using this formula. xDGood luck :D