(9a^2+6ab+b^2)/(9a^2b-b^3)
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(9a^2+6ab+b^2)/(9a^2b-b^3)(9a^2+6ab+b^2)/(9a^2b-b^3)(9a^2+6ab+b^2)/(9a^2b-b^3)(9a^2+6ab+b^2)/(9a^2b-
(9a^2+6ab+b^2)/(9a^2b-b^3)
(9a^2+6ab+b^2)/(9a^2b-b^3)
(9a^2+6ab+b^2)/(9a^2b-b^3)
(9a^2+6ab+b^2)/(9a^2b-b^3)
=(3a+b)^2/b(9a^2-b^2)
=(3a+b)^2/b(3a+b)(3a-b)
=(3a+b)/b(3a-b)
(9a^2+6ab+b^2)/(9a^2b-b^3)
=(3a+b)^2/b(9a^2-b^2)
=(3a+b)^2/b(3a+b)(3a-b)
=(3a+b)/b(3a-b)
(a+ab)-[(ab-2b)-a]-(-9ab),其中a+b=-7,ab=3.
(9a²-6ab+b²)/(3a²-ab),其中b/a=2
计算(3a-2b)(9a*a+6ab+4b*b)-(3a+2b)(9a*a-6ab+4b*b)
a^2b^2-6ab+9
a^2+6ab+9b^2
-a^2-9b^2+6ab
a^2+9b^2+6ab
-9a^3+12a^2b-6ab^2
急.如果a*a-ab=9,ab-b*b=4.求a*a-b*b和a*a-2ab+b*b的值
a^3-6a^b+9ab^2分解因式
[(a^2-b^2)/b]^2/(a^2+ab)^3*(ab/b-a)^2另:a^2+ab=9
9a²b-3ab+a²+6a²b+ab+2a²合并同类项
a^2b(a-b)-6ab(b-a),
【a²-6ab+9a²/a²-2ab 】/【(5b²/a-2b)-a-2b】-1/a a+b=4 a-b=2【a²-6ab+9a²/a²-2ab 】/【(5b²/a-2b)-a-2b】-1/a的值为多少
关于x的方程a(a-4)x-b(b-6)=9-4x有无数解,求[a-4ab/(a+b)+b]÷[a/(a+b)-b/(b-a)-2ab/(a^2-b^2)]的值
a+b/2ab
2AB/A+B
a+b/2ab