分解因式:(x+y+z)^3+(3x-2y-3z)^3-(4x-y-2z)^3
1个回答
=-(3x-2y-3z)[(x+y+z)^2-(x+y+z)(4x-y-2z)+(4x-y-2z)^2]+(3x-2y-3z)^3
然后提取公因式就好了
相关问题
分解因式:x3(x+1)(y-z)+y3(y+1)(z-x)+z3(z+1)(x-y)
x^2(-y-x)-3.2x(z+y) 分解因式
x-5y-3z=0 y+z-3x=3 x+y+3z=14 y+4z=3 z+x-3y=5 2x+y+z=7 2x-z=1
x+y+z=3,3x-y-4z=-2,2x+3y-2z=3
x+y+z=2 ① 2x+3y+z=38 ① x+y=3 3x-y-4z=5 ② 3x+4y+2z+56 ② y+z=5
x,y,z满足x+y+z=3,x^2+y^2+z^2=29,x^3+y^3+z^3=45,求x,y,z,x^4+y^4+
证明:(y+z-2x)3+(z+x-2y)3+(x+y-2z)3=3(y+z-2x)(z+x-2y)(x+y-2z).
分解因式:8x^4y^3z^3-6x^5y^2
2x-y=7 x+y+z=25x+3y+z=2 x-2y+z=-1 3x-4z=4 x+2y+3z=-1x+y-z=6x
x3+y3+z3-3xyz 和 x3+y3+z3+3xyz分解因式