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2.78;0.04
12*x^4-(9*x^2)-(21*x)+0*x^3-9 = 0;x
x
-129.74*e^(-x/3.92)
(x+1)/3-((y+2)/4)-((2*(x-y))/5);(x-3)/4-((y-3)/3)+x-(2*y)
129.74*e^(-x/3.92)
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