几道初中因式分解6x^2+7x+2=4m^2-12m+9=5+7x-6x^2=12x^2+xy-6y^2=2x^2-xy-15y^2=x^2+x-(a^2-a)=20a^4-33a^2b^2+7b^4=(x^2-5x)+10(x^2-5x)-96=ab(c^2-d^2)+cd(a^2-b^2)=x^2-4mx+8mn-4n^2=x^4+64=x^3-11x^2+31x-21=x^3-4xy^2-2x^2y+8y^3=
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![几道初中因式分解6x^2+7x+2=4m^2-12m+9=5+7x-6x^2=12x^2+xy-6y^2=2x^2-xy-15y^2=x^2+x-(a^2-a)=20a^4-33a^2b^2+7b^4=(x^2-5x)+10(x^2-5x)-96=ab(c^2-d^2)+cd(a^2-b^2)=x^2-4mx+8mn-4n^2=x^4+64=x^3-11x^2+31x-21=x^3-4xy^2-2x^2y+8y^3=](/uploads/image/z/1851334-70-4.jpg?t=%E5%87%A0%E9%81%93%E5%88%9D%E4%B8%AD%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A36x%5E2%2B7x%2B2%3D4m%5E2-12m%2B9%3D5%2B7x-6x%5E2%3D12x%5E2%2Bxy-6y%5E2%3D2x%5E2-xy-15y%5E2%3Dx%5E2%2Bx-%28a%5E2-a%29%3D20a%5E4-33a%5E2b%5E2%2B7b%5E4%3D%28x%5E2-5x%29%2B10%28x%5E2-5x%29-96%3Dab%28c%5E2-d%5E2%29%2Bcd%28a%5E2-b%5E2%29%3Dx%5E2-4mx%2B8mn-4n%5E2%3Dx%5E4%2B64%3Dx%5E3-11x%5E2%2B31x-21%3Dx%5E3-4xy%5E2-2x%5E2y%2B8y%5E3%3D)
几道初中因式分解6x^2+7x+2=4m^2-12m+9=5+7x-6x^2=12x^2+xy-6y^2=2x^2-xy-15y^2=x^2+x-(a^2-a)=20a^4-33a^2b^2+7b^4=(x^2-5x)+10(x^2-5x)-96=ab(c^2-d^2)+cd(a^2-b^2)=x^2-4mx+8mn-4n^2=x^4+64=x^3-11x^2+31x-21=x^3-4xy^2-2x^2y+8y^3=
几道初中因式分解
6x^2+7x+2=
4m^2-12m+9=
5+7x-6x^2=
12x^2+xy-6y^2=
2x^2-xy-15y^2=
x^2+x-(a^2-a)=
20a^4-33a^2b^2+7b^4=
(x^2-5x)+10(x^2-5x)-96=
ab(c^2-d^2)+cd(a^2-b^2)=
x^2-4mx+8mn-4n^2=
x^4+64=
x^3-11x^2+31x-21=
x^3-4xy^2-2x^2y+8y^3=
几道初中因式分解6x^2+7x+2=4m^2-12m+9=5+7x-6x^2=12x^2+xy-6y^2=2x^2-xy-15y^2=x^2+x-(a^2-a)=20a^4-33a^2b^2+7b^4=(x^2-5x)+10(x^2-5x)-96=ab(c^2-d^2)+cd(a^2-b^2)=x^2-4mx+8mn-4n^2=x^4+64=x^3-11x^2+31x-21=x^3-4xy^2-2x^2y+8y^3=
6x^2+7x+2=(3x+2)(2x+1)
4m^2-12m+9=(2m-3)^2
5+7x-6x^2=(5-3x)(1+2x)
12x^2+xy-6y^2=(3x-2y)(4x+3y)
2x^2-xy-15y^2=(2x+5y)(x-3y)
x^2+x-(a^2-a)=(x+a)(x-a+1)
20a^4-33a^2b^2+7b^4=(4a^2-b^2)(5a^2-7b^2)
(x^2-5x)+10(x^2-5x)-96=!有错的吧?是不是(x^2-5x)^2+10(x^2-5x)-96=(x²-5x+16)(x-6)(x+1)
ab(c^2-d^2)+cd(a^2-b^2)=(ac-bd)(bc+ad)
x^2-4mx+8mn-4n^2=(x-2n)(x+2n-4m)
x^4+64=(x²+8-4x)(x²+8+4x)
x^3-11x^2+31x-21=(x-1)(x-3)(x-7)
x^3-4xy^2-2x^2y+8y^3=(x-2y)(x^2-4y^2)
6x^2+7x+2=(2x+1)(3x+2)
4m^2-12m+9=(2m+3)(2m+3)
5+7x-6x^2=(1+2x)(5-3x)
12x^2+xy-6y^2=(3x-2y)(4x+3y)
2x^2-xy-15y^2=(2x+5y)(x-3y)
x^2+x-(a^2-a)=
20a^4-33a^2b^2+7b^4=(5a^2-7B^2)(4a...
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6x^2+7x+2=(2x+1)(3x+2)
4m^2-12m+9=(2m+3)(2m+3)
5+7x-6x^2=(1+2x)(5-3x)
12x^2+xy-6y^2=(3x-2y)(4x+3y)
2x^2-xy-15y^2=(2x+5y)(x-3y)
x^2+x-(a^2-a)=
20a^4-33a^2b^2+7b^4=(5a^2-7B^2)(4a^2-B^2)
=(根号5 a+根号7b)(根号5 a-根号7b)(2a+b)(2a-b)
(x^2-5x)+10(x^2-5x)-96=(x^2-5x)^2+10(x^2-5x)-96==(x^2-5x+16)(x^2-5x-6)=(x^2-5x+16)(x-6)(x+1)
ab(c^2-d^2)+cd(a^2-b^2)=
x^2-4mx+8mn-4n^2=
x^4+64=
x^3-11x^2+31x-21=
x^3-4xy^2-2x^2y+8y^3=
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6x^2+7x+2=(2x+1)(3x+2)
4m^2-12m+9=(2m-3)^2
5+7x-6x^2=(1+2x)(5-3x)
12x^2+xy-6y^2=(3x-2y)(4x+3y)
2x^2-xy-15y^2=(x-3y)(2x+5y)
x^2+x-(a^2-a)=(x-a)(x+a+1)
20a^4-33a^2b^2+7b^4=(4a-b)...
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6x^2+7x+2=(2x+1)(3x+2)
4m^2-12m+9=(2m-3)^2
5+7x-6x^2=(1+2x)(5-3x)
12x^2+xy-6y^2=(3x-2y)(4x+3y)
2x^2-xy-15y^2=(x-3y)(2x+5y)
x^2+x-(a^2-a)=(x-a)(x+a+1)
20a^4-33a^2b^2+7b^4=(4a-b)(5a-7)
(x^2-5x)+10(x^2-5x)-96=(x-6)(x+1(x^2-5x+16)
ab(c^2-d^2)+cd(a^2-b^2)=(ac-bd)(bc+ad)
x^2-4mx+8mn-4n^2=(x+2n-4m)(x-2n)
x^4+64==(x^2-4x+8)(x^2+4x+8)
x^3-11x^2+31x-21=(x-1)(x-3)(x-7)
x^3-4xy^2-2x^2y+8y^3==(x+2y)(x-2y)^2
终于打完了,好多哦,累死了
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