(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

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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
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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)+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)+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=(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)