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X 2 4x 9 0
X 2 4x 9 0 pictures 5
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X 2 4x 9 0
3 4x 9 x 2 0
4x 2 12 x 9 0
y 4x 9 x u003d- 2 0 4
x 2 4x 9 4 0
factor x^2+4x-9u003d0
solve x 2 4x 9 0
x 2 4x 9 0 quadratic formula
x 2 4x 9 0
