(2x^2-x^3)2=(-3x^2-2x^3)2 /2
2x^2-x^3=-3x^2-2x^3 /+3x^2
5x^2-x^3=-2x^3/ +x^3
5x^2=-x^3 /wyjmij pierwiastek
5x=-x^2/:x
5=-x
x=-5
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(2x^2-x^3)2=(-3x^2-2x^3)2 /2
2x^2-x^3=-3x^2-2x^3 /+3x^2
5x^2-x^3=-2x^3/ +x^3
5x^2=-x^3 /wyjmij pierwiastek
5x=-x^2/:x
5=-x
x=-5