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1.5*a-(0.5*a^2)-(2*b)-(((a^3)/5)*b) = 0
1.5*a-0.5*a^2-2*b-(((a^3)/5)*b) = 0
1.5*a-0.5*a^2-1/5*a^3*b-2*b = 0
x należy do R
x in (-oo:+oo)
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