数学计算填空(5x+y)(5x-y)(5x+y)(-5x+y)(5x+y)(-5x-y)(5x+y)(x-5y)(x ^m+y ^n) （y ^n- x^ m)(x ^m+2y-3x^3)²(x-2y）(______)=4y²-x²(__________)²=m²-2m+1（只需要写一个代数式）(__________+3)²=4x²+(_______)
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数学计算填空(5x+y)(5x-y)(5x+y)(-5x+y)(5x+y)(-5x-y)(5x+y)(x-5y)(x ^m+y ^n) （y ^n- x^ m)(x ^m+2y-3x^3)²(x-2y）(______)=4y²-x²(__________)²=m²-2m+1（只需要写一个代数式）(__________+3)²=4x²+(_______)
数学计算填空
(5x+y)(5x-y)
(5x+y)(-5x+y)
(5x+y)(-5x-y)
(5x+y)(x-5y)
(x ^m+y ^n) （y ^n- x^ m)
(x ^m+2y-3x^3)²
(x-2y）(______)=4y²-x²
(__________)²=m²-2m+1（只需要写一个代数式）
(__________+3)²=4x²+(_______)(每格内只需要填一个代数式)
(x+y)(x²-y²)(x-y)
(1-a)²（1+a）²(1+a²)²
全部算出来了我会给分的
做出来了我就可以当上第一批入团队员了！
数学计算填空(5x+y)(5x-y)(5x+y)(-5x+y)(5x+y)(-5x-y)(5x+y)(x-5y)(x ^m+y ^n) （y ^n- x^ m)(x ^m+2y-3x^3)²(x-2y）(______)=4y²-x²(__________)²=m²-2m+1（只需要写一个代数式）(__________+3)²=4x²+(_______)
1.25x²-y²
2.-25x²+y²
3.-(25x²+10xy+y²)
4.5x²-24xy-5y²
5.y^2n-x^2m
6.x^2m+4x^my+4y^2-6x^(m+3)-6x^3y+9x^6
7.(-x-4y)
8.(m-1)
9.2x,12x+9
10.(x²-y²)^2
11.(1+a²)^4
(5x+y)(5x-y)=25x^2-y^2
(5x+y)(-5x+y)=-25x^2+y^2
(5x+y)(-5x-y)=-25x^2-y^2-10xy
(5x+y)(x-5y)=5x^2-24xy-5y^2
(x ^m+y ^n) （y ^n- x^ m)=y^(2n)-x^(2m)
(x ^m+2y-3x^3)^2=x^(2m)+4y^2+9...
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(5x+y)(5x-y)=25x^2-y^2
(5x+y)(-5x+y)=-25x^2+y^2
(5x+y)(-5x-y)=-25x^2-y^2-10xy
(5x+y)(x-5y)=5x^2-24xy-5y^2
(x ^m+y ^n) （y ^n- x^ m)=y^(2n)-x^(2m)
(x ^m+2y-3x^3)^2=x^(2m)+4y^2+9x^6+4(x^m)y-6x^(m+3)-12(x^3)y
(x-2y）(-x-2y)=4y^2-x^2
(m-1)^2=m^2-2m+1
(2x+3)^2=4x^2+12x+9
(x+y)(x2-y2)(x-y)=(x^2-y^2)(x^2-y^2)=x^4+y^4-2(xy)^2
(1-a)^2（1+a）^2(1+a^2)^2=(1-a^2)^2*(1+a^2)=(1-a^4)^2=a^4-2a^2+1
收起
解
1.25x²-y²
2.-25x²+y²
3.-(25x²+10xy+y²)
4.5x²-24xy-5y²
5.y^2n-x^2m
6.x^2m+4x^my+4y^2-6x^(m+3)-6x^3y+9x^6
7.(-x-4y)
8.(m-1)
9.2x,12x+9
10.(x²-y²)^2
11.(1+a²)^4