多项式除以多项式?要法则,再加上几道例题(越多越好),

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/25 22:11:42
多项式除以多项式?要法则,再加上几道例题(越多越好),

多项式除以多项式?要法则,再加上几道例题(越多越好),
多项式除以多项式?
要法则,再加上几道例题(越多越好),

多项式除以多项式?要法则,再加上几道例题(越多越好),
1) 4y(2x-y)-2x(2x-y)]/(2x-y)
[4y(2x-y)-2x(2x-y)]/(2x-y)
=(4y-2x)(2x-y)/(2x-y)
=4y-2x
2)已知:[8x^3y^3-(-xy^2)^2]/A=-x^2y^2+1/8xy^3,求A/4x
[8x^3y^3-(-xy^2)^2]/A=-x^2y^2+1/8xy^3
所以
A=[8x^3y^3-(-xy^2)^2]/[-x^2y^2+1/8xy^3]
=(8x^3y^3-x^2y^4)/(-x^2y^2+1/8xy^3)
=x^2y^3(8x-y)/[-xy^2(x-1/8y)]
=xy(8x-y^2)/(1/8y-x)
=8xy(8x-y)/(y-8x)
=-8xy
3)(2y4-y3+y-3 )÷ (3-2y+y2 )
4)[(x/2)^3-y^3]/(x/2-y)=_______;
5)(x^4-2x^2·y^2+y^4)/(x+y)^2/((x-y)=_________;
6)(8a^3-1)/(4a^2+2a+1)(2a+1)=__________;
7)(a^2-3a)/(a^2+2a+1)=________.
8)(x^4 + 2x^2 - x+2)÷(1-x + x^2)
9)(16x^3y-24x^2y+32xy)/( )=4x^2-6x+8
10) (3x+5y)*________=9x^2 - 25y^2