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)&#
2019-05-07
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！
优质解答
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
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