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2 4x 1 0
2 4x 1 0 pictures 5
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2 4x 1 0
3x 2 4x 1 0 quadratic formula
solve x 2 4x 1 0
4x 2 4x 1 0 quadratic formula
5x 2 4x 1 0
x 2 4x 1 0 quadratic formula
3x 2 4x 1 0
2x 2 4x 1 0
x 2 4x 1 0
2 4x 1 0 discriminant
2 4x 1 0