(4+2x-3y^2)*(5x+y^2-4xy)*(xy-3x^2+2y^4)的最高次项是填空题
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(4+2x-3y^2)*(5x+y^2-4xy)*(xy-3x^2+2y^4)的最高次项是填空题
(4+2x-3y^2)*(5x+y^2-4xy)*(xy-3x^2+2y^4)的最高次项是
填空题
(4+2x-3y^2)*(5x+y^2-4xy)*(xy-3x^2+2y^4)的最高次项是填空题
(-3y^2)*y^2*(2y^4)=-6y^8
每一个括号理最高次项相乘
(-3y^2)*y^2*2y^4=-6y^8
和
(-3y^2)*(-4xy)*2y^4=24xy^7
两项
jtthhh 说得对,不多做回答
(x-y)^3×(y-x)^4+(x-y)^2×(y-x)^5
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[(x+y)(x-y)-(x-y)的平方+2y(x-y)]除以(4y)请帮我一下写两道计算题[(x+y)(x-y)-(x-y)的平方+2y(x-y)]除以(4y)[(3x+2y)(3x-2y)-(x+2y)(5x-2y)]除以(4x)
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3(x+y)+2(x-y)=36 4(x+y)-5(x-y)=2
5x^3y(x-y)^3-10x^4y^3(y-x)^2因式分解
5x^3y(x-y)^3-10x^4y^3(y-x)^2
(x+y)/2- x-y/2=6 3(x+y)=4(x-y)
(y-x)^4(x-y)^3+2(x-y)^6(y-x)
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3(x+y)-4(x-y)=11,2(x-y)+5(x+y)=27
2分之x+y+3分之x-y;4(x+y)-(x-y)谢谢了,
先化简再求值(x-y)(x-2y)+(x-2y)(x-3y)-2(x-3y)(x-4y) x=4 y=5
计算(x^8-x^7y+x^5y^3-x^4y^4+x^3y^5-x^y^7+y^8)(x^2+xy+y^2)
2(x-y)+3(x+y)2-5(x-y)-8(x+y)2-(x-y)