来自龙训田的问题
因式分解(x^2+1)×(3x-2)+(2x-3)(1+x^2)化简求值[2x^2+(x+y)(x-y)]×[(x+y)^2+(x-y)^2]x=2y=-1/2
因式分解(x^2+1)×(3x-2)+(2x-3)(1+x^2)化简求值[2x^2+(x+y)(x-y)]×[(x+y)^2+(x-y)^2]x=2y=-1/2
1回答
2020-01-16 09:47