[(3ab-2)(3ab+2)+(2ab+2)²]/5ab=

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[(3ab-2)(3ab+2)+(2ab+2)²]/5ab=
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[(3ab-2)(3ab+2)+(2ab+2)²]/5ab=
[(3ab-2)(3ab+2)+(2ab+2)²]/5ab=

[(3ab-2)(3ab+2)+(2ab+2)²]/5ab=
（9a²b²-4+4a²b²+8ab+4）/5ab
=（13a²b²+8ab）/5ab
=13/5ab+8/5
根据平方差公式和完全平方式

原式=(9a²b²-4+4a²b²+8ab+4)/5ab
=(13a²b²+8ab)/5ab
=（13ab+8)/5

[(3ab-2)(3ab+2)+(2ab+2)2]/5ab
=(9a^2b^2-4+4a^2b^2+8ab+4)/5ab
=(13a^2b^2+8ab)/5ab
=13/5ab+8/5

3ab(ab的平方+2ab) 5ab-2[3ab-(4ab²+2分之1ab)]-5ab² (2/3ab^2-2ab)*1/2ab (2/3ab^2-2ab)×1/2ab 计算:(3ab^2)^2 + (-4ab^3) * (-ab) a^2-3ab+b^2/ab=( )/ab-3 a^2-3ab+b^2/ab=( )/ab -3 3(a2-2ab)-(-ab+b2)+(2ab+b2) 计算(-2ab)×3ab= 2ab+3ab等于多少? [(3ab-2)(3ab+2)+(2ab+2)²]/5ab= [(3ab-2)(3ab+2)+(2ab+2)²]/5ab= v a^2b-ab+2ab^2-5a^b-4ab+3ab^2化简快 化简：(-3ab)(-5ab)+2/3ab的二次方(7/3ab-2a) 已知a＋b=3,ab=2 求 ab+2ab+ab 的值 计算：2ab[(2ab)²-3b(ab+a²b)-ab²] ab-[3ab-(4ab^2+1)]-4ab^2化简.（要有过程） ab-[3ab-(4ab^2+1)]-4ab^2化简.