[(-3ab)^2a^3-2a^2(3ab^2))^3*1/2b]÷(-3ab^2))^2

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[(-3ab)^2a^3-2a^2(3ab^2))^3*1/2b]÷(-3ab^2))^2

[(-3ab)^2a^3-2a^2(3ab^2))^3*1/2b]÷(-3ab^2))^2
[(-3ab)^2a^3-2a^2(3ab^2))^3*1/2b]÷(-3ab^2))^2

[(-3ab)^2a^3-2a^2(3ab^2))^3*1/2b]÷(-3ab^2))^2
[(-3ab)^2a^3-2a^2(3ab^2))^3*1/2b]÷(-3ab^2))^2
=(9a^2b^2*a^3-2a^2*27a^3b^6*b/2)/(9a^2b^4)
=(9a^5b^2-27a^5b^7)/(9a^2b^4)
=(a^3-3a^3b^5)/(b^2).

[(-3ab)^2a^3-2a^2(3ab^2))^3*1/2b]÷(-3ab^2))^2
=(9a^2b^2a^3-2a^2*27a^3b^6*1/2b]÷(9a^2b^4)
=(9a^5b^2-27a^5b^7)÷(9a^2b^4)
=(9a^5b^2)÷(9a^2b^4)-(-27a^5b^7)÷(9a^2b^4)
=a^3/b^2+3a^3b^3

3(-ab+2a)-(3a-b) 3(-ab+2a)-(3a-b) (a-b)^3+2ab(a-b) a^3-ab^2 =a （a^2 -b^2) =a(a+b)(a-b) 3(-2ab+3a)-(2a-b)+6ab 3(-ab+2a)-(3a-b)+2ab -3ab-4a^2+3a^2+5ab 3（-ab+2a)-(3a-b）+3ab 化简：（3a^2+2ab)-2(a+ab) (2a²-ab+1)-2(a-2ab+3) 化简:(-2ab+3a)-(2a-b)+6ab 因式分解 a^3+2a^2b+ab^2-a 计算：5ab-a²-2(ab-3a)² (3a-ab+7)-(-4a+2ab+7) -2ab乘以(-a^+6a^b-3a+b) 18ab(a-b)^2-12a(b-a)^3 因式分解:a^3-ab^2 计算：a^2×(-a)^2×(-a)^3（-ab）^2·（2a^2-ab-1)