(2a-b)^2+8ab;9m^2-n^2+3m-n;(a-3)^2+(3-a);(a^2+4a)^2+8(a^2+4a
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(2a-b)^2+8ab;9m^2-n^2+3m-n;(a-3)^2+(3-a);(a^2+4a)^2+8(a^2+4a)+16;4m^2+2mn+1/4n^2;6xy^2-9x^2y-y^3;x^2+16y^2-8xy;x^2+15x+36;a^2-2ab+b^2-c^2
![(2a-b)^2+8ab;9m^2-n^2+3m-n;(a-3)^2+(3-a);(a^2+4a)^2+8(a^2+4a](/uploads/image/z/19929130-34-0.jpg?t=%EF%BC%882a-b%EF%BC%89%5E2%2B8ab%3B9m%5E2-n%5E2%2B3m-n%3B%28a-3%29%5E2%2B%283-a%29%3B%28a%5E2%2B4a%29%5E2%2B8%28a%5E2%2B4a)
(2a-b)^2+8ab=(2a+b)^2
9m^2-n^2+3m-n=(3m-n)(3m+n+1)
(a-3)^2+(3-a)=(a-3)(a-4)
(a^2+4a)^2+8(a^2+4a)+16=(a^2+4a+4)^2=(a+2)^4
4m^2+2mn+1/4n^2=(2m+1/2n)^2
6xy^2-9x^2y-y^3=-y(3x-y)^2
x^2+16y^2-8xy=(x-4y)^2
x^2+15x+36=(x+3)(x+12)
a^2-2ab+b^2-c^2=(a-b+c)(a-b-c)
9m^2-n^2+3m-n=(3m-n)(3m+n+1)
(a-3)^2+(3-a)=(a-3)(a-4)
(a^2+4a)^2+8(a^2+4a)+16=(a^2+4a+4)^2=(a+2)^4
4m^2+2mn+1/4n^2=(2m+1/2n)^2
6xy^2-9x^2y-y^3=-y(3x-y)^2
x^2+16y^2-8xy=(x-4y)^2
x^2+15x+36=(x+3)(x+12)
a^2-2ab+b^2-c^2=(a-b+c)(a-b-c)
计算a-ab/a+b(a/a-b+b/b-a)和1-m-n/m+2n÷m²-n²/m²+4
已知a^m=4 a^n=8 求a^2m+3n
分解因式:(m-n)^3+(m-n)^2 a^3-2a^2b+ab^2
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a^3m 2n÷a^m一n
a^(n+1)b^n-4a^(n+2)+3ab^n-12a^2
1.(3m+2n)^2-4(m-n)^2 2.3a(a+b)^2-27ab^2
A.3M+N B.2M+2N C.M+N D.M+3N
已知a^m=2,a^n=4,求a^3m-2n
a^m=3,a^n=4,则a^2m+3n
若a^m=4,a^n=3,则a^m+2^n等于?
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