作业帮1.x^4-4x^3+4x^2-92.y^5-11y^3+y
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1.x^4-4x^3+4x^2-92.y^5-11y^3+y
1.x^4-4x^3+4x^2-9
2.y^5-11y^3+y
1.x^4-4x^3+4x^2-92.y^5-11y^3+y
您好!
1.
x^4-4x^3+4x^2-9
=x^2[x^2-4x+4]-9
=x^2[x-2]^2-9
=[x(x-2)+3][x(x-2)-3]
=[x^2-2x+3][x^2-2x-3]
=[x^2-2x+3][x-3][x+1]
2.
y^5-11y^3+y
=y（y^4-2y^2+1-9y^2）
=y[（y^2-1）^2-9y^2]
=y（y^2+3y-1）
=y^2-3y-1
1.x^4-4x^3+4x^2-9
=x^2(x^2-4x+4)-9
=x^2(x-2)^2-9
=[x(x-2)]^2-3^2
=(x^2-2x)^2-3^2
=(x^2-2x-3)(x^2-2x+3)
=(x-3)(x+1)(x^2-2x+3)
2.y^5-11y^3+y
=y(y^4-11y^2+1)
=y[(y^4-2y^2+1)-9y^2]
=y[(y^2-1)^2-(3y)^2]
=y(y^2+3y-1)(y^2-3y+1)
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1.x^4-4x^3+4x^2-92.y^5-11y^3+y
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