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X 2 x 1 5
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X 2 x 1 5
x 2 1 5 x 3 1 4 solve
5 x 4 )u003d 2 x 1 )- 7
3x 5 x 1 2 x 3
5 x 1 )- 2 x 8 )u003d 0
5 x 1 2 x 10
x 2 x 30 x 5 1
y 1 /( x 2 x 1 5
f x )u003d 2 x 1 5
x 2 x 1 5 0
x 2 x 1 5
