Odpowiedzi

2010-01-20T18:39:55+01:00
-6a3b3+8a2 b3+6 a3b3-4 a3b2+8a2 b3=16 a2 b3-4 a3b2
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2010-01-20T19:00:14+01:00
[2ab²(-3a²b+4ab)]-[ (3ab²-2ab+4b²)×(-2a²b)]=-6a^3b^3 +8a^2b^3-(-6a^3b^3+4a^3b^2-8a^2b^3)=-6a^3b^3 +8a^2b^3+6a^3b^3-4a^3b^2+8a^2b^3=16a^2b^3-4a^3b^2
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