-2a^3+12a^2*b-18ab^2(2)4(a-b)x^2+8(b-a)xy+4(a-b)y^2
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-2a^3+12a^2*b-18ab^2(2)4(a-b)x^2+8(b-a)xy+4(a-b)y^2
-2a^3+12a^2*b-18ab^2
(2)4(a-b)x^2+8(b-a)xy+4(a-b)y^2
-2a^3+12a^2*b-18ab^2(2)4(a-b)x^2+8(b-a)xy+4(a-b)y^2
-2a^3+12a^2*b-18ab^2
=-2a(a^2-6ab+9b^2)
=-2a(a-3b)^2
4(a-b)x^2+8(b-a)xy+4(a-b)y^2
=4(a-b)(x+y)^2
-2a^3+12a^2*b-18ab^2
=-2a(a²-6ab+9b²)
=-2a(a-3b)²
4(a-b)x^2+8(b-a)xy+4(a-b)y^2
=4(a-b)x^2-8(a-b)xy+4(a-b)y^2
=4(a-b)(x^2-2xy+y^2)
=4(a-b)(x-y)^2
-2a^3+12a^2*b-18ab^2
=-2a(a^2-6ab+9b^2)
=-2a(a-3b)^2
18ab(a-b)^2-12a(b-a)^3
(a-b)^3+2ab(a-b)
a+b/2ab
2AB/A+B
a+b/2ab
ab/a+b=3 a-2ab+b/2a-3ab+2b?
3(-ab+2a)-(3a-b)
3(-ab+2a)-(3a-b)
-2a^3b(a-2)+12a^2b^2(a-2)+18ab^3(2-a)因式分解
(ab(a^-2ab)-a^2b(a-3b))÷(3a^b)
-2ab乘以(-a^+6a^b-3a+b)
a^3-ab^2 =a (a^2 -b^2) =a(a+b)(a-b)
因式分解:a×a×a-2a×a×b+ab×b
因式分解:2a^b^2+10a^2b+12a^2-3ab^2-15ab-18a-b^2-5b-6Quickly!(主元法)
a^2b-ab+2ab^2-5a^b-4ab+3ab^2化简快
3(-2ab+3a)-(2a-b)+6ab
3(-ab+2a)-(3a-b)+2ab
化简:(-2ab+3a)-(2a-b)+6ab