求下列代数式的值3ab-5ab^3+0.5a^3b-3ab^2+5ab^2-4.5a^3b

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求下列代数式的值3ab-5ab^3+0.5a^3b-3ab^2+5ab^2-4.5a^3b
求下列代数式的值3ab-5ab^3+0.5a^3b-3ab^2+5ab^2-4.5a^3b

求下列代数式的值3ab-5ab^3+0.5a^3b-3ab^2+5ab^2-4.5a^3b
3ab-5ab^3+0.5a^3b-3ab^2+5ab^2-4.5a^3b
=3ab-5ab^3-4a^3b+2ab^2

3ab-5ab^3+0.5a^3b-3ab^2+5ab^2-4.5a^3b
=3ab-5ab³-4a³b+2ab²