分解因式（过程）
26xy+x^2+169y^2(x+y-1)^2-8(x+y-1)+1614(b-a)-1-49(a-b)^22x^2y-x^3-xy^2-a+2a^2-a^3(x^2+...
26xy+x^2 +169y^2
(x+y-1)^2-8(x+y-1)+16
14(b-a)-1-49(a-b)^2
2x^2y -x^3 -xy^2
-a+2a^2 -a^3
(x^2 +y^2)^2 -4x^2y^2
x^3z -4x^2yz +4xy^2z
(x+2)(x+3)+x^2 -4 展开
(x+y-1)^2-8(x+y-1)+16
14(b-a)-1-49(a-b)^2
2x^2y -x^3 -xy^2
-a+2a^2 -a^3
(x^2 +y^2)^2 -4x^2y^2
x^3z -4x^2yz +4xy^2z
(x+2)(x+3)+x^2 -4 展开
1个回答
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=(x+13y)^2
=(x+y-5)^2
=-[7(a-b)-1]^2=-(7a-7b-1)^2
=x(2xy-x^2-y^2)=-x(x-y)^2
=-a(1-a)^2
=(x^2+y^2+2xy)(x^2+y^2-2xy)=(x+y)^2(x-y)^2
=zx(x-2y)^2
=(X+2)(x+3)+(x+2)(x-2)=(x+2)(2x+1)
=(x+y-5)^2
=-[7(a-b)-1]^2=-(7a-7b-1)^2
=x(2xy-x^2-y^2)=-x(x-y)^2
=-a(1-a)^2
=(x^2+y^2+2xy)(x^2+y^2-2xy)=(x+y)^2(x-y)^2
=zx(x-2y)^2
=(X+2)(x+3)+(x+2)(x-2)=(x+2)(2x+1)
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