-(5a+4b)^2-2(5a-4b)(3a-2b)
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-(5a+4b)^2-2(5a-4b)(3a-2b)
![-(5a+4b)^2-2(5a-4b)(3a-2b)](/uploads/image/z/17988256-64-6.jpg?t=-%285a%2B4b%29%5E2-2%285a-4b%29%283a-2b%29)
-(5a+4b)^2-2(5a-4b)(3a-2b)=-(25a^2+40ab+16b^2)-2(15a^2-22ab+8b^2)=-25a^2-40ab-16b^2-30a^2+44ab-16b^2=-55a^2+4ab-32b^2
0 a a+b 2a+b 2a+2b 3a+2b 3a+3b 4a+3b 4a+4b 5a+4b 5a+5b …… 求一
(2a+b)(2a-b)-3a(4a-3b)+(4a-b)(2a-b) a=5分之3,b=3分之2
1.(a-b)^2(b-a)^3(a-b)^-4
计算:((a+b)(a-b)-(a-b)^2+2b(a-b))/4(a-b)
2A的2次方-3A[2A-5B]-4B[5A-B]
怎样化简 [(3a+2b)(3a-2b)-(a+2b)(5a-2b)]/4a
(a-2b)(a^2-2ab+4b^2)-a(a-5b)(a+3b)
同底数幂乘方(a-b)^5*(a-b)^10*(b-a)(a-2b)^2*(a-2b)*4*(a-b)(x-3y)^2*
[(4a+3b)(4a-3b)-(3a=3b)(2a-3b)]/5a 化简
已知a*a+b*b-2a+4b+5=0,求2(a+b)(a-b)+(a-b)(a-b)-(6a*a*b-2a*b*b)/
已知a*a+b*b+a-2b+5/4=0,求【a-b】/【a+b】的值
-2(4a-3b)+3(5b-3a)