:(a+2b)²-a²-2ab
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:(a+2b)²-a²-2ab:(a+2b)²-a²-2ab:(a+2b)²-a²-2ab(a+2b)²-a²-2ab=
:(a+2b)²-a²-2ab
:(a+2b)²-a²-2ab
:(a+2b)²-a²-2ab
(a+2b)²-a²-2ab
=a²+4ab+4b²-a²-2ab
=2ab+4b²
=2b(a+2b)
2b(2b+2)
2b(a+2b)
(a+2b)2-a2-2ab=a2+4b2+4ab-a2-2ab=4b2+2ab
答案是2b(a+2b)
(a+2b)²-a²-2ab
=a²+4ab+4b²-a²-2ab
=4b²+2ab
=2b(2b+a)
(a²-b²)²+(a²+2b²)² 计算
计算题(2a-b)²(4a²+b²)²(2a+b)²
帮忙化简下a² -b²/a²b+ab²÷(1-a ² +b² /2ab)
(a²+b²)-4a²b²因式分解
a²b²-a²-b²+1 因式分解
化简 (a²-ab+2b²)-2(b²-a²)
计算:4a²+3b²-4a²+2ab-4b²
因式分解:a²+b²-4a²b²-2ab-1
6a³b²-4a²b²+2ab²
化简:(b²-a²)/(a²-2ab+b²)
-2a^3b+8a²b²-8ab^3 (7x²+2y²)²-(2x²+7y²)²
1.(a²-b²)²+3(a²-b²)-18 2.a²+2ab+b²-a-b 3.(m²+3m)²-8(m²+3m)-20 4.4a²bc-3a²c²+8abc-6ac² 5.(y²+3y)²-(2y+6)²
分解因式:x^4-a²x²-b²x²+a²b²
a²b+b²c+c²a-ab²-bc²-ca²因式分解
因式分解(c²-a²-b²)²-4a²b²,
4a²b²-(a²+b²-c²)²
a²+4b²+(c²)²-4ab-2ac²+4bc²-1因式分解
分解因式3ax²-3ay²ax²-4ay² 2a³b-4a²b²+2a²b³