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X 4 7x 2 1
X 4 7x 2 1 pictures 5
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X 4 7x 2 1
2x 3 x 1 2 7x 1 4 13 6
7x 10 3 x 2 )+ 4 x 1
x 4 7x 3 14x 2 7x 1
x 4 7x 3 14x 2 7x 1 0
x 2 7x 6 7x 1 4
2 7x 4 )- 9 x 1
solve 7x 1 4 x 2
integrate x 2 1 x 4 7x 2 1
x 4 7x 2 1 0
x 4 7x 2 1