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x^4-2*x^3-9*x^2+2*x+8;x^2-1
6*x^4-2*x^3-9*x^2+6*x+8;x^2-1
x^4-2*x^3-9*x^2+2*x+8;x^2-1
2*x-2*x^3-9*x^2+8;x^2-1
-3*(7*x+2)-(2*x) = 5*(x-3)-x-2;x
x
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