(a+b/2ab^2)^3/(a^2-b^2/ab^2)^2/{1/2(a-b)}^2,其中a=-1/2,b=2/3
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(a+b/2ab^2)^3/(a^2-b^2/ab^2)^2/{1/2(a-b)}^2,其中a=-1/2,b=2/3
(a+b/2ab^2)^3/(a^2-b^2/ab^2)^2/{1/2(a-b)}^2,其中a=-1/2,b=2/3
(a+b/2ab^2)^3/(a^2-b^2/ab^2)^2/{1/2(a-b)}^2,其中a=-1/2,b=2/3
原式=[(a+b)^3/(8a^3b^6)*(1/4)*(a-b)^2]/{[(a+b)^2(a-b)^2]/(a^2b^4)}
=[(a+b)/8a^3b^6]*a^2b^4*(1/4)
=1/32(a+b)/(ab^2)
=1/32×(-1/2+2/3)/[(-1/2)*(4/9)]
=-3/128
(a-b)^3+2ab(a-b)
a+b/2ab
2AB/A+B
a+b/2ab
(a-b)(3ab+2a²b-b³)
ab/a+b=3 a-2ab+b/2a-3ab+2b?
ab^3+b^2+b-a+1
-2ab乘以(-a^+6a^b-3a+b)
18ab(a-b)^2-12a(b-a)^3
(ab(a^-2ab)-a^2b(a-3b))÷(3a^b)
(a-b)平方-2ab(b-a)
a^3-ab^2 =a (a^2 -b^2) =a(a+b)(a-b)
3(-ab+2a)-(3a-b)
3(-ab+2a)-(3a-b)
因式分解:a×a×a-2a×a×b+ab×b
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(a-b)(a^5+a^4b+a^3b^2+ab^4+b^5)bggg
b/a+a/b=3,求2ab/(a*a+b*b)-(3a*a+ab+3b*b)/2ab的值