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9x 4 6x 2 1
9x 4 6x 2 1 pictures 5
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9x 4 6x 2 1
cu0103n 4 1 6x 9x 2
1 2 6x 4 )- 2 3 9x 3
9x 4 6x 2 x 1 5
81x 4 9x 2 6x 1
factor 9x^4+6x^2+1
9x 4 6x 2 1 0
9x 4 6x 2 1 u003d( x 2 1 2
9x^4-6x^2+1u003d(x^2-1)^2
9x 4 6x 2 1
