[(3a^2b-2ab^2)(4a^2-ab^2)-(2ab^2)^2]÷(-1/2a^2b^2)
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[(3a^2b-2ab^2)(4a^2-ab^2)-(2ab^2)^2]÷(-1/2a^2b^2)
[(3a^2b-2ab^2)(4a^2-ab^2)-(2ab^2)^2]÷(-1/2a^2b^2)
=(12a^4b-3a^3b^3-8a^3b^2+2a^2b^4-4a^2b^4)÷(-1/2a^2b^2)
=(12a^4b-3a^3b^3-8a^3b^2-2a^2b^4)÷(-1/2a^2b^2)
=-24a^2+6ab+16a+4b^2
(3a^2b-2ab^2)(4a^2-ab^2)
=12a^4b-3a^3b^3-8a^3b^2+2a^2b^4
所以(3a^2b-2ab^2)(4a^2-ab^2)-(2ab^2)^2
=12a^4b-3a^3b^3-8a^3b^2+2a^2b^4-4a^2b^4
=12a^4b-3a^3b^3-8a^3b^2-2a^2b^4
所以原式=(12a^4b-3...
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(3a^2b-2ab^2)(4a^2-ab^2)
=12a^4b-3a^3b^3-8a^3b^2+2a^2b^4
所以(3a^2b-2ab^2)(4a^2-ab^2)-(2ab^2)^2
=12a^4b-3a^3b^3-8a^3b^2+2a^2b^4-4a^2b^4
=12a^4b-3a^3b^3-8a^3b^2-2a^2b^4
所以原式=(12a^4b-3a^3b^3-8a^3b^2-2a^2b^4)/
=-12a^4b/(1/2a^2b^2)+3a^3b^3/(1/2a^2b^2)+8a^3b^2/(1/2a^2b^2)+2a^2b^4/(1/2a^2b^2)
=-24a^2/b+6ab+16a+4b^2
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a
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化简[(a-b)/(a+2b)]/[(a^2-b^2)/(a^2+4ab+b^2)]-(3a^2-4ab)/(a^2+ab)
求化简 (a-b)/(a+2b)除以(a^2-b^2)/(a^2+4ab+b^2)-(3a^2-4ab)/(a^2+ab)
计算(a^3-4a^2b-a+4ab^2)/a(a-2b+1)
{ab-[3a²b-(4a²b+1/2ab)]-4a²b}+3a²b