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2x x2 4 0
2x x2 4 0 pictures 5
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2x x2 4 0
4 0 x2 u2212 2x dx
x2 2x 4 0 complete square
x2 2x 4 0 factorizacion
roots of x2 2x 4 0
solve x2 2x 4 0
x2 2x 1 )- 4 0
x2 2x 4 0 discriminant
x2+ u221A 2x 4 0
rownanie x2+2x/x2-4u003d0
2x x2 4 0
