a^4+2a^3b+3a^2b^2+2ab^3+b^4分解急用
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a^4+2a^3b+3a^2b^2+2ab^3+b^4分解急用a^4+2a^3b+3a^2b^2+2ab^3+b^4分解急用a^4+2a^3b+3a^2b^2+2ab^3+b^4分解急用a^4+2a^
a^4+2a^3b+3a^2b^2+2ab^3+b^4分解急用
a^4+2a^3b+3a^2b^2+2ab^3+b^4
分解急用
a^4+2a^3b+3a^2b^2+2ab^3+b^4分解急用
a^4+2a^3b+3a^2b^2+2ab^3+b^4
=(a^4+b^4+a^2b^2)+2ab(a^2+ab+b^2)
=[(a^2+b^2)^2-a^2b^2]+2ab(a^2+ab+b^2)
=(a^2+ab+b^2)(a^2-ab+b^2)+)+2ab(a^2+ab+b^2)
=(a^2+ab+b^2)^2
5(a*a*b-3*a*a*b)-2*(a*a*b-7*a*b*b)
(a+2b)(a-2b)+(a-b)(a+b)-2(a-3b)(a-b)
2(a+b)-[4(a+b)-3(a+b)]一[5(a-b)+(a-b)]过程
2a(a-b)+4a(2a+3b)
(2/3a)-[2/(a+b)]{[(a+b)/3a]-a-b}÷[(a-b)/a]
化简:[2/3a - 2/(a+b) * (a+b/3a - a - b)] / (a-b)/a
(2/3a)-[2/(a+b)]{[(a+b)/3a]-a-b}÷[(a-b)/b]
计算:(4a-b)^2-[8a*(a-b)-(3a-b)*(3a+b)]
(2a-3b)[(a+b)-b(a-3b)]
a^2(a-b)+b^2(b-a) 因式分解 (a-b)^3-(a-b)^2 因式分解
A-B A+B 2B+A 3A-B 6A+2B
2(a+3b)²-8(a+b)(a-b)-(a+3b)(a-b)
化简a/b(a-b)-b/a(a-b)其中a=3 b=-2
因式分解:2a(a-b)-a(2a+3b)
(a-b)^4+a^2(b-a)^2-2a(b-a)^3 .
2a-{7b+[4a-7b-(2a-6a-4b)]-3a
(3a+4b)(7a-8b)+(11a+2b)(8a-7a)
a+a-a+2a-3a-2b+3b-5b+3b-4b-5b